| Author | Titles | | 1.
| Cornuz, Jean Louis | 1 | | 2.
| Cornwall, Coronel | 1 | | 3.
| Cornwall, James Handsyde Marshall | 1 | | 4.
| Cornwell, Regina | 1 | | 5.
| Coro Gulbenkian (Lisboa, Portugal) | 0 | | 6.
| Author is: Fundação Calouste Gulbenkian. Coro (Lisboa, Portugal) | 1 | | 7.
| Coro, Pier Paolo | 2 | | 8.
| Coroado, Fernando | 1 | | 9.
| Coromandel design | 1 | | 10.
| Coromina, Anna | 1 | | 11.
| Corominas, Joan | 1 |
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