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