| Author | Titles | | 1.
| Castro, Ferreira de, 1898-1974 | 93 | | 2.
| Castro, Filipe | 1 | | 3.
| Castro Flórez, Fernando, 1964- | 40 | | 4.
| Castro, Francesco | 1 | | 5.
| Castro, Francisco Cyrne de | 1 | | 6.
| Castro, Francisco de | 1 | | 7.
| Castro, Francisco de, 1574-1653 | 3 | | 8.
| Castro, Francisco de Mello e | 1 | | 9.
| Castro, Francisco José de, 1923- | 3 | | 10.
| Castro, Francisco Lyon de, 1914-2004 | 3 |
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