| Author | Titles | | 1.
| Claretie, Jules, pseud. | 9 | | 2.
| Claridge, Michael | 1 | | 3.
| Clarinha | 2 | | 4.
| Claris, Daniel, 19--?- | 1 | | 5.
| Claris, J. P. | 1 | | 6.
| Claris, Justin Joseph | 1 | | 7.
| Clarival, Álvaro de, pseud. | 0 | | 8.
| Author is: Sérgio, António, 1883-1969 | 186 | | 9.
| Clark, Alessandra | 1 | | 10.
| Clark, Andrew J. | 1 | | 11.
| Clark, Anthony M. | 1 |
|
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