| Author | Titles | 1.
| Calisto, Vasco | 10 | 2.
| Calixto, Benedito, 1853-1927 | 1 | 3.
| Calixto, José António | 2 | 4.
| Calixto, Maria Leonor | 2 | 5.
| Calkins, Robert G. | 3 | 6.
| Callado, Antônio | 1 | 7.
| Callado, José Carlos Pereira Lucas | 1 | 8.
| Callaghan, John | 1 | 9.
| Callahan, Carol J. | 1 | 10.
| Callahan, David | 6 |
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