| Author | Titles | | 1.
| Castillo, Ramón del | 1 | | 2.
| Castiñeiras González, Manuel Antonio | 2 | | 3.
| Castiñeiras, Manuel | 1 | | 4.
| Casting Gráfico Estudio (Firma) | 4 | | 5.
| Castle, Alison | 1 | | 6.
| Castle, Douglas, pseud. | 1 | | 7.
| Castle of the Dukes of Pomerania. Gothic Gallery (Szczecin, Polónia) | 1 | | 8.
| Castleberry II, Charles Richard | 1 | | 9.
| Castleman, Riva, 1930-2014 | 9 | | 10.
| Castlereach, Duncan | 1 |
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