| Author | Titles | | 1.
| Castleberry II, Charles Richard | 1 | | 2.
| Castleman, Riva, 1930-2014 | 9 | | 3.
| Castlereach, Duncan | 1 | | 4.
| Castoldi, Marina | 1 | | 5.
| Castorena Y Ursua, Juan Ignacio de | 1 | | 6.
| Castoriadis, Cornelius, 1922-1997 | 1 | | 7.
| Castres, A. Sabatier de | 1 | | 8.
| Castresana, Luis de | 1 | | 9.
| Castries, Henry de | 1 | | 10.
| Castrillo, Carolina F. | 6 |
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