Library of Congress Congressional Research Service 91,408
Levin, Vladimir 15,820
Liszt, Franz, 1811-1886 14,906
Langley Research Center 14,071
London Symphony Orchestra 10,313
Lisa Unger Baskin Collection (David M. Rubenstein Rare Book & Manuscript Library) 9,255
Luther, Martin, 1483-1546 8,290
Lewis Research Center 7,748
Linckesche Leihbibliothek 7,548
London Philharmonic Orchestra 6,244
Laurie Burrows Grad Collection (University of Pennsylvania) 5,684
Library of Congress 4,818
Lasso, Orlando di, 1532-1594 4,423
Leonard L. Milberg Collection of American Poetry 4,094
Lenin, Vladimir Ilʹich, 1870-1924 4,026
Longfellow, Henry Wadsworth, 1807-1882 3,990
Library of Congress Legislative Reference Service 3,974
League of Nations 3,917
Library of Jacques Derrida (Princeton University Library) 3,256
Lovecraft Collection (Brown University) 3,098
Leopoldo Cicognara Program (University of Illinois at Urbana-Champaign) 2,930
Leoncavallo, Ruggiero, 1858-1919 2,613
Louis A. Duhring Fund 2,613
Lytton, Edward Bulwer Lytton, Baron, 1803-1873 2,518
Leona Bowman Carpenter Collection of English and American Literature 2,423
Lessing, Gotthold Ephraim, 1729-1781 2,338
Leonard L. Milberg Collection of Irish Prose 2,337
Lovecraft, H. P (Howard Phillips), 1890-1937 2,321
Liberty Hyde Bailey Hortorium Ethel Z. Bailey Horticultural Catalogue Collection 2,315
Lincoln, Abraham, 1809-1865 2,285
Livy 2,234
Leonard L. Milberg Collection of Jewish American Writers 2,222
Laozi 2,181
Lownes Science Collection (Brown University) 2,131
Lully, Jean-Baptiste, 1632-1687 2,050
Lu, Xun, 1881-1936 2,032
Lawrence, D. H (David Herbert), 1885-1930 1,948
Locke, John, 1632-1704 1,946
Library of Theodore Dreiser (University of Pennsylvania) 1,943
La Fontaine, Jean de, 1621-1695 1,928
Laura Jan Meyerson Poetry Fund 1,926
Lipman Criminology Library Fund 1,870
Library of Congress Government Division 1,858
Lester Ziffren Collection of Tauromachia 1,834
Louis XVI, King of France, 1754-1793 1,798
Lang, Andrew, 1844-1912 1,790
Laughlin Collection (Brown University) 1,789
Library of Congress Congressional Research Service. Resources, Science, and Industry Division 1,776
Lutosławski, Witold, 1913-1994 1,739
L'Estrange, Roger, Sir, 1616-1704 1,726
Library of Congress Congressional Research Service. American Law Division 1,705
London, Jack, 1876-1916 1,690
Le Corbusier, 1887-1965 1,687
Lucian, of Samosata 1,680
Loewe, Carl, 1796-1869 1,661
Leonardo, da Vinci, 1452-1519 1,656
Lamb, Charles, 1775-1834 1,630
Library of Congress Copyright Office 1,593
Library of Congress Division of Bibliography 1,565
Landon, H. C. Robbins (Howard Chandler Robbins), 1926-2009 1,552
Lowell, James Russell, 1819-1891 1,545
Library of Congress Foreign Affairs Division 1,542
Luo, Zhenyu, 1866-1940 1,476
Levine, James, 1943-2021 1,461
Leonard L. Milberg Irish Theater Collection 1,446
Lamartine, Alphonse de, 1790-1869 1,424
Lehár, Franz, 1870-1948 1,422
Leonard S. Marcus Collection of Children's Literature (Beinecke Rare Book and Manuscript Library) 1,392
Leopardi, Giacomo, 1798-1837 1,339
Leibniz, Gottfried Wilhelm, Freiherr von, 1646-1716 1,322
Leonhardt, Gustav, 1928-2012 1,291
Lucretius Carus, Titus 1,284
Ligeti, György, 1923-2006 1,280
Louisiana 1,224
Ligaran 1,214
London Symphony Chorus 1,169
Leroy T. Walker Africa News Service Archives 1,156
Lincoln Laboratory 1,153
Literatura de Cordel Collection (Columbia University. Libraries) 1,125
Los Angeles County Museum of Art 1,123
Ludwig, Christa 1,121
Large, Brian 1,120
Le Sage, Alain René, 1668-1747 1,108
Lily, William, 1468?-1522 1,100
Louisville Orchestra 1,089
Lehár, Franz, 1870-1948 1,082
League of Nations Council 1,080
Lasso, Orlando di 1,074
Loti, Pierre, 1850-1923 1,072
Llull, Ramon, 1232?-1316 1,066
Lipsius, Justus, 1547-1606 1,062
Liang, Qichao, 1873-1929 1,061
Louis XV, King of France, 1710-1774 1,050
Leinsdorf, Erich, 1912-1993 1,036
Loofs, Friedrich, 1858-1928 1,028
Li, Tiaoyuan, 1734-1803 1,024
Limited Editions Club 1,012
Louis XIV, King of France, 1638-1715 1,011
Luo, Guanzhong, approximately 1330-approximately 1400 993
Lewis, Sinclair, 1885-1951 985