| Author | Titles | | 1.
| Coombs, Herrán | 6 | | 2.
| Coombs, Karen A. | 1 | | 3.
| Cooney, Ray | 1 | | 4.
| Coop Himmelb(l)au (Firma de Arquitectura) | 12 | | 5.
| Coop Himmelblau, Wolf D. Prix, Helmut Swiczinsky and Partner (Firma de Arquitectura) | 0 | | 6.
| Author is: Coop Himmelb(l)au (Firma de Arquitectura) | 12 | | 7.
| Coop Himmelblau, Wolf D. Prix, Helmut Swiczinsky + Partner (Firma de Arquitectura) | 0 | | 8.
| Author is: Coop Himmelb(l)au (Firma de Arquitectura) | 12 | | 9.
| Coop. Paz dos Reis | 1 | | 10.
| Coopbancários (Lisboa, Portugal) | 1 | | 11.
| Cooper, A. C. | 1 | | 12.
| Cooper, A. Heaton | 1 |
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