Authors: Robert
- Young, Robert F. 1915-1986 18 books
- Hayes, Clair W. (Clair Wallace) 1887- 18 books
- Bain, R. Nisbet (Robert Nisbet) 1854-1909 17 books
- Browning, Robert 1812-1889 17 books
- Winterbotham, R. R. (Russell Robert) 1904-1971 16 books
- Markham, Clements R. (Clements Robert), Sir 1830-1916 16 books
- Millar, H. R. (Harold Robert) 1869-1942 16 books
- Bowen, Robert Sidney 1900-1977 15 books
- Hauptmann, Gerhart 1862-1946 15 books
- Herrick, Robert 1868-1938 15 books
- Engle, Robert 1928- 14 books
- Bridges, Robert 1844-1930 14 books
- Graves, Robert 1895-1985 14 books
- Benson, Robert Hugh 1871-1914 14 books
- Dodsley, Robert 1703-1764 13 books
- Roberts, Theodore Goodridge 1877-1953 13 books
- De Roberto, Federico 1861-1927 13 books
- Forte, John R. (John Robert) 1918-1966 13 books
- Abernathy, Robert 1924-1990 13 books
- Conrad, Robert Taylor 1810-1858 12 books
- Grant, Robert 1852-1940 11 books
- Robertson, Margaret M. (Margaret Murray) 1821-1897 11 books
- Elwes, R. H. M. (Robert Harvey Monro) 1853- 11 books
- McDowell, Robert Emmett 1914-1975 11 books
- Buchanan, Robert Williams 1841-1901 11 books
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