Authors: Leo
- Engel, Georg 1866-1931 4 books
- Wiener, Leo 1862-1939 4 books
- Leone, Sergio (Illustrator) - 4 books
- Alas, Leopoldo 1852-1901 4 books
- Courtney, W. L. (William Leonard) 1850-1928 4 books
- Gilder, Jeannette L. (Jeannette Leonard) 1849-1916 4 books
- Tinseau, Léon de 1844-1921 4 books
- Lang, Mrs. - 4 books
- Huxley, Leonard 1860-1933 4 books
- Williams, Leonard 1871- 3 books
- Ranke, Leopold von 1795-1886 3 books
- Brose, Henry L. (Henry Leopold) 1890-1965 3 books
- Carlson, George L. 1887-1962 3 books
- Maanpää, J. 1886-1956 3 books
- Krohn, Kaarle 1863-1933 3 books
- Lugones, Leopoldo 1874-1938 3 books
- Elias, Lee 1920-1998 3 books
- Cahun, David-Léon 1841-1900 3 books
- Bizet, Georges 1838-1875 3 books
- Lemay, Pamphile 1837-1918 3 books
- Waldo, Fullerton L. (Fullerton Leonard) 1877-1933 3 books
- Wettergrund, Josefina 1830-1903 3 books
- Leonard, R. M. (Robert Maynard) - 3 books
- Blumenschein, E. L. (Ernest Leonard) 1874-1960 3 books
- Randolph, Paschal Beverly 1825-1874 3 books
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