| Author | Titles | | 1.
| Cumpston, Charles | 1 | | 2.
| Cumulonimbus | 1 | | 3.
| Cunca, Paula Figueiredo | 2 | | 4.
| Cunca, Raúl, 1963- | 10 | | 5.
| Cunca, Raul José Ribeiro de Matos | 1 | | 6.
| Cunca, Raúl José Ribeiro de Matos, 1963- | 0 | | 7.
| Author is: Cunca, Raúl, 1963- | 10 | | 8.
| Cunéaz, Giuliana | 1 | | 9.
| Cuneo, Camillo | 1 | | 10.
| Cuneo, Paolo, 1963-1995 | 7 | | 11.
| Cunha, A. Gonçalves da, 1902- | 2 |
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