Rosengarten Family Fund 24,130
Rand Corporation 14,412
Rossini, Gioacchino, 1792-1868 11,856
Ravel, Maurice, 1875-1937 10,912
Rachmaninoff, Sergei, 1873-1943 9,884
Research Publications, inc 9,772
Rand McNally and Company 8,436
Royal College of Physicians of London 8,280
Recorded Anthology of American Music, Inc 7,457
Radovan, Zeʼev 6,840
Riewert Tode Collection of German Student Movements and Counter-Culture 6,259
Rimsky-Korsakov, Nikolay, 1844-1908 5,596
Ruth Neils and John M. Ward Collection of Opera Scores 5,374
Royal Philharmonic Orchestra 5,021
Rosengarten International Fund 3,981
Rhode Island Medical Society Collection (Brown University) 3,936
Reger, Max, 1873-1916 3,894
Rowlandson, Thomas, 1756-1827 3,690
Rilke, Rainer Maria, 1875-1926 3,604
Rousseau, Jean-Jacques, 1712-1778 3,166
Rameau, Jean-Philippe, 1683-1764 3,049
Ruskin, John, 1819-1900 3,028
Reshet 2,822
Ray Nash Book Collection 2,576
Rodgers, Richard, 1902-1979 2,521
Romani, Felice, 1788-1865 2,487
Respighi, Ottorino, 1879-1936 2,402
Racine, Jean, 1639-1699 2,345
Rilling, Helmuth 2,044
Religious Tract Society (Great Britain) 2,018
Rhode Island Medical Society Collection (Brown University) Davenport Collection 1,962
Royal Society of Chemistry (Great Britain) 1,933
Rubinstein, Anton, 1829-1894 1,922
Roosevelt, Theodore, 1858-1919 1,916
Rhode Island General Assembly 1,891
Rocky Mountain Forest and Range Experiment Station (Fort Collins, Colo.) 1,836
Rabin, Yitzhak, 1922-1995 1,822
Rhode Island 1,784
Radcliffe College 1,731
Rollo Silver Collection (Brown University) 1,715
Russia 1,684
Richter, Sviatoslav, 1915-1997 1,652
Riverside Press (Cambridge, Mass.) 1,638
Russian S.F.S.R 1,638
Royal Society (Great Britain) 1,624
Rashut ha-sheniyah la-ṭeleṿizyah ṿela-radyo 1,623
Russia (Federation) 1,613
Rashi, 1040-1105 1,612
Rider Collection (Brown University) Broadsides 1,606
Royal Academy of Arts (Great Britain) 1,564
Rostropovich, Mstislav, 1927-2007 1,519
Rogers, Bruce, 1870-1957 1,511
Roussel, Albert, 1869-1937 1,509
Rubinstein, Artur, 1887-1982 1,463
Rihm, Wolfgang 1,411
Royal Institute of International Affairs 1,391
Rodrigo, Joaquín 1,374
Rheinberger, Josef, 1839-1901 1,368
Royal Geographical Society (Great Britain) 1,364
Rolland, Romain, 1866-1944 1,343
Rashut ha-sheniyah la-ṭeleṿizyah ṿela-radyo 1,326
Rembrandt Harmenszoon van Rijn, 1606-1669 1,311
Russell, Bertrand, 1872-1970 1,310
Rattle, Simon, 1955- 1,263
Reagan, Ronald 1,258
Rowe, Nicholas, 1674-1718 1,187
Reiner, Fritz, 1888-1963 1,183
Renan, Ernest, 1823-1892 1,183
Royal Opera House (London, England) Orchestra 1,157
Richardson, Samuel, 1689-1761 1,126
Radio-Symphonie-Orchester Berlin 1,125
Rozhdestvenskiĭ, Gennadiĭ 1,119
RM Arts (Firm) 1,102
Rupp Collection (Athenaeum of Philadelphia) 1,071
Royal Anthropological Institute of Great Britain and Ireland 1,048
Raz, Shelomoh 1,037
Rampal, Jean-Pierre, 1922-2000 1,031
Rimbaud, Arthur, 1854-1891 1,023
Reade, Charles, 1814-1884 1,002
Rorem, Ned, 1923-2022 1,000
Rabbi Arthur Hertzberg Scholarly Library 992
Rollo Silver Collection (Brown University) Duplicates not retained 983
Royal Opera House (London, England) 980
RKO Radio Pictures 976
Raleigh, Walter, Sir, 1552?-1618 963
Rossi, Gaetano, 1774-1855 962
Réunion des musées nationaux (France) 960
R.R. Donnelley and Sons Company Training Department Library 957
Reich Rare Judaica Facsimile Collection (University of Pennsylvania) 957
Rabelais, François, approximately 1490-1553? 954
Rota, Nino, 1911-1979 947
Roosevelt, Franklin D (Franklin Delano), 1882-1945 941
Risk Reduction Engineering Laboratory (U.S.) 933
Royal Liverpool Philharmonic Orchestra 933
Reich, Steve, 1936- 921
Rossetti, Dante Gabriel, 1828-1882 915
Ronsard, Pierre de, 1524-1585 914
Rollins, Sonny 912
Raphael, 1483-1520 907
Royal Scottish National Orchestra 901