Library of Congress Congressional Research Service 91,408
Levin, Vladimir 15,820
Liszt, Franz, 1811-1886 14,917
Langley Research Center 14,071
London Symphony Orchestra 10,318
Lisa Unger Baskin Collection (David M. Rubenstein Rare Book & Manuscript Library) 9,270
Luther, Martin, 1483-1546 8,294
Lewis Research Center 7,748
Linckesche Leihbibliothek 7,548
London Philharmonic Orchestra 6,249
Laurie Burrows Grad Collection (University of Pennsylvania) 5,684
Library of Congress 4,815
Lasso, Orlando di, 1532-1594 4,425
Leonard L. Milberg Collection of American Poetry 4,093
Lenin, Vladimir Ilʹich, 1870-1924 4,027
Longfellow, Henry Wadsworth, 1807-1882 3,992
Library of Congress Legislative Reference Service 3,974
League of Nations 3,919
Library of Jacques Derrida (Princeton University Library) 3,247
Lovecraft Collection (Brown University) 3,098
Leopoldo Cicognara Program (University of Illinois at Urbana-Champaign) 2,930
Leoncavallo, Ruggiero, 1858-1919 2,617
Louis A. Duhring Fund 2,613
Lytton, Edward Bulwer Lytton, Baron, 1803-1873 2,516
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 2,284
Livy 2,234
Leonard L. Milberg Collection of Jewish American Writers 2,222
Laozi 2,184
Lownes Science Collection (Brown University) 2,131
Lully, Jean-Baptiste, 1632-1687 2,056
Lu, Xun, 1881-1936 2,032
Lawrence, D. H (David Herbert), 1885-1930 1,949
Locke, John, 1632-1704 1,947
Library of Theodore Dreiser (University of Pennsylvania) 1,942
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 1,800
Lang, Andrew, 1844-1912 1,791
Laughlin Collection (Brown University) 1,789
Library of Congress Congressional Research Service. Resources, Science, and Industry Division 1,776
Lutosławski, Witold, 1913-1994 1,740
L'Estrange, Roger, Sir, 1616-1704 1,726
Library of Congress Congressional Research Service. American Law Division 1,705
London, Jack, 1876-1916 1,692
Le Corbusier, 1887-1965 1,687
Lucian, of Samosata 1,680
Loewe, Carl, 1796-1869 1,661
Leonardo, da Vinci, 1452-1519 1,657
Lamb, Charles, 1775-1834 1,630
Library of Congress Copyright Office 1,593
Library of Congress Division of Bibliography 1,566
Landon, H. C. Robbins (Howard Chandler Robbins), 1926-2009 1,552
Lowell, James Russell, 1819-1891 1,546
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 1,423
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 1,292
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
Lasso, Orlando di 1,098
Louisville Orchestra 1,089
Lehár, Franz, 1870-1948 1,082
League of Nations Council 1,081
Loti, Pierre, 1850-1923 1,072
Llull, Ramon, 1232?-1316 1,067
Liang, Qichao, 1873-1929 1,062
Lipsius, Justus, 1547-1606 1,062
Louis XV, King of France, 1710-1774 1,050
Leinsdorf, Erich, 1912-1993 1,035
Loofs, Friedrich, 1858-1928 1,028
Li, Tiaoyuan, 1734-1803 1,023
Limited Editions Club 1,012
Louis XIV, King of France, 1638-1715 1,011
Library of Congress Federal Research Division 999
Luo, Guanzhong, approximately 1330-approximately 1400 994