| Rabinowitz, Stanley | Index to Mathematical Problems 1980-1984 | 00 General and overarching topics; collections |
| Rabinowitz, Stanley | Problems and Solutions From The Mathematical Visitor 1877-1896 | 00 General and overarching topics; collections |
| Rado, Tibor | Subharmonic Functions | 47 Operator theory |
| Rado , ??? | Length and Area | 28 Measure and integration |
| Radok, J.R.M. | Theory of Algebraic Invariants | 53 Differential geometry |
| Raghavarao, Damaraju | Constructions and Combinatorial Problems in Design of Experiments | 05 Combinatorics |
| Raikov, Gelfand | Commutative Normed Rings | 47 Operator theory |
| Rainich, G.Y. | Mathematics of Relativity | 53 Differential geometry |
| Rainville, Earl | The Laplace Transform | 44 Integral transforms |
| Rainville, Earl | Elementary Differential Equations | 34 Ordinary differential equations |
| Rainville, Earl | Special Functions | 33 Special functions |
| Ramanathan, K.G | Lectures on The Algebraic Theory Of Fields | 12 Field theory and polynomials |
| Ramírez Alfonszín, Jorge | Perfect Graphs | 05 Combinatorics |
| Ranaudo, Frederico | Awakening of Reason | 01 History and biography |
| Rand, D.A. | Dynamical Systems and Turbulence | 37 Dynamical systems |
| Rasiowa, Helena | The Mathematics of Metamathematics | 02 (03) Mathematical logic and foundations |
| Read, R.C. | Proceedings of the Second Caribbean Conference in Combinatorics and Computing | 05 Combinatorics |
| Reade, John B. | An Introduction to Mathematical Analysis | 26 Real functions |
| Recski, András | Matroid Theory and its Applications in Electric Network Theory and in Statics | 05 Combinatorics |
| Reed, Michael | Abstract Non-linear Wave Equations | 35 Partial differential equations |
| Reid, Constance | Courant in Göttingen and New York: The Story of an Improbable Mathematician | 01 History and biography |
| Reidemeister, Kurt | Kombinatorische Topolgy | 55 Algebraic topology |
| Reidemeister, K. | Knotentheorie | 55 Algebraic topology |
| Reidemeister, K. | Topologie der Polyeder | 52 Convex and discrete geometry |
| Rellich, Franz | Perturbation Theory of Eigenvalue Problems | 47 Operator theory |
| Ren Chao, Yuen | Language and Symbolic Systems | 02 (03) Mathematical logic and foundations |
| Renardy, Michael | Mathematical Problems in Viscoelasticity | 45 Integral equations |
| Reneke, James | Structures Hereditary Systems | 93 Systems theory; control |
| Rham, Georges | Varietes Differentiables | 57 Manifolds and cell complexes |
| Ribenboim, Paulo | Linear Representations of Finite Groups | 20 Group theory and generalizations |
| Ribenboim, Paulo | My Numbers, My Friends: Popular Lectures on Number Theory | 11 Number theory |
| Ribenboim, Paulo | Theorie Des Valuations | 13 Commutative algebra |
| Ribenboim, Paulo | 13 Lectures on Fermat's Last Theorem | 11 Number theory |
| Rice, John R. | Matrix Computations and Mathematical Software | 65 Numerical analysis |
| Richardson, C. H. | An Introduction to the Calculus of Finite Differences | 39 Difference equations |
| Richtmyer, Robert | Difference Methods for Initial Value Problems | 65 Numerical analysis |
| Riesz, Frigyes | Functional Analysis | 46 Functional analysis |
| Rietz, Henry | Mathematical Statistics | 62 Statistics |
| Ringeisen, Richard | Applications of Discrete Mathematics | 05 Combinatorics |
| Riordan, John | An Introduction to Combinatorial Analysis | 05 Combinatorics |
| Ritchie, Robert | New Directions in Mathematics; Dartmouth College Mathematics Conference, Nov 3-4 1961 | 00 General and overarching topics; collections |
| Rival, Ivan | Graphs and Order: The Role of Graphs in the Theory of Ordered Sets and Its Applications | 05 Combinatorics |
| Roberts, Siobhan | King of Infinite Space: Donald Coxeter, The Man Who Saved Geometry | 01 History and biography |
| Roberts, Siobhan | Genius at Play: The Curious Mind of John Horton Conway | 01 History and biography |
| Robertson, A.P. | Topological Vector Spaces | 46 Functional analysis |
| Robertson, A.P. | Topological Vector Spaces | 46 Functional analysis |
| Robertson, A.P. | Topological Vector Spaces | 46 Functional analysis |
| Robertson, Jack | Cake-Cutting Algorithms | 05 Combinatorics |
| Robin, Louis | Fonctions Spheriques De Legendre | 33 Special functions |
| Robinson, Abraham | Numbers and Ideals | 10 (11) Number theory |
| Robinson, G. | The Foundations of Geometry | 50 (51) Geometry |
| Robinson, Abraham | Nonstandard Analysis | 03 Mathematical logic and foundations |
| Robinson, Eleanor | The Oxford Handbook of the History of Mathematics | 01 History and biography |
| Robinson, Abraham | Theorie Metamathematique des Ideaux | 03 Mathematical logic and foundations |
| Rockafellar, R.T. | Network Flows and Monotropic Optimization | 90 Operations research, mathematical programming |
| Rockafellar, R.T. | Networks Flows and Monotropic Optimization | 90 Operations research, mathematical programming |
| Rolfsen, Dale | Knots and Links | 57 Manifolds and cell complexes |
| Romik, Dan | The Surprising Mathematics of Longest Increasing Subsequences | 05 Combinatorics |
| Roos, H.-G. | Numerical Methods for Singularly Perturbed Differential Equations | 65 Numerical analysis |
| Rose, Paul | The Italian Renaissance of Mathematics: Studies on Humanists and Mathematicians from Petrarch to Galileo | 01 History and biography |
| Rose, H.E. | A Course in Number Theory | 11 Number theory |
| Roseman, Dennis | Elementary Topology | 54 General topology |
| Rosen, Kenneth | Handbook of Discrete and Computational Mathematics | 05 Combinatorics |
| Rosenberg, Arnold | Graph Separators, with Applications | 05 Combinatorics |
| Rosenblatt, Murray | Studies in Probability Theory | 60 Probability theory and stochastic processes |
| Rosenfeld, Azriel | An Introduction to Algebraic Structures | 08 General algebraic systems |
| Rosenhouse, Jason | The Monty Hall Problem: The Remarkable Story of Maths Most Contentious Brain Teaser | 00 General and overarching topics; collections |
| Rosenhouse, Jason | Taking Sudoku Seriously: The Math Behind the World's Most Popular Pencil Puzzle | 05 Combinatorics |
| Rosenhouse, Jason | Four Lives: A Celebration of Raymond Smullyan | 01 History and biography |
| Rosenlicht, Maxwell | Introduction to Analysis | 26 Real functions |
| Rosenstiehl, P. | Theory of Graphs: International Symposium | 05 Combinatorics |
| Ross, Kenneth A. | Elementary Analysis | 26 Real functions |
| Ross, Sheldon M. | Stochastic Processes | 60 Probability theory and stochastic processes |
| Rota, Gian-Carlo | Finite Operator Calculus | 05 Combinatorics |
| Rothbart, Andrea | The Theory of Remainders | 11 Number theory |
| Rothstein, Edward | Emblems of Mind: The Inner Life of Music and Mathematics | 00 General and overarching topics; collections |
| Rotman, Joseph | Notes on Homological Algebra | 18 Category theory; homological algebra |
| Rotman, Joseph J. | Advanced Modern Algebra | 09 Abstract algebra |
| Rowlinson, Peter | Surveys in Combinatorics, 1995 | 05 Combinatorics |
| Roy, Ranjan | Sources in the Development of Mathematics: Series and Products from the Fifteenth to the Twenty-First Century | 01 History and biography |
| Royden, H.L. | Real Analysis | 26 Real functions |
| Rozanov, Yu | Markov Random Fields | 60 Probability theory and stochastic processes |
| Rudin, Walter | Function Theory in Polydiscs | 32 Several complex variables |
| Rudin, Walter | Real and Complex Analysis | 26 Real functions |
| Rudin, Walter | Principles of Mathematical Analysis | 27 (28) Measure and integration |
| Rudin, Walter | Functional Analysis | 46 Functional analysis |
| Rudin, Mary Ellen | Lectures on Set Theoretic Topology | 54 General topology |
| Rudin, Mary | Lectures on Set Theoretic Topology | 54 General topology |
| Russell, Bertrand | Introduction to Mathematical Philosophy | 03 Mathematical logic and foundations |
| Ryser, Herbert | Combinatorial Mathematics | 05 Combinatorics |