| Author | Titles | 1.
| Carloni, Tita | 2 | 2.
| Carlos | 1 | 3.
| Carlos, Adelino da Palma, 1905-1992 | 3 | 4.
| Carlos, António | 6 | 5.
| Carlos Arroyo y Eleonora Guidotti (Firma de Arquitectura) | 1 | 6.
| Related author: Arroyo, Carlos, 1961- | 1 | 7.
| Related author: Guidotti, Eleonora, 1964- | 1 | 8.
| Carlos Bayon, Damián | 1 | 9.
| Carlos Bejarano, Juan | 1 | 10.
| Carlos Bonvalot, 1893-1934 | 0 | 11.
| Author is: Bonvalot, Carlos, 1893-1934 | 6 | 12.
| Carlos Botelho, 1899-1982 | 0 | 13.
| Author is: Botelho, Carlos, 1899-1982 | 134 | 14.
| Carlos Boutet, Guiomar de | 1 |
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