| Author | Titles | | 1.
| Contreiras, José Miguel | 1 | | 2.
| Contreiras Júnior, Manuel Francisco | 1 | | 3.
| Contrepied, V. Vernier | 1 | | 4.
| Contreras de la Paz, Rafael | 1 | | 5.
| Contreras, Ernest | 1 | | 6.
| Contreras Gómez, Carmen | 1 | | 7.
| Contreras, J. de | 1 | | 8.
| Contreras, Jorge | 1 | | 9.
| Contreras, Juan, 1893-1978 | 0 | | 10.
| Author is: Lozoya, Marquês de, 1893-1978 | 19 | | 11.
| Contreras, Rafael, 1826-1890 | 2 |
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