| Author | Titles | | 1.
| Dupuy, Philippe, 1960- | 1 | | 2.
| Duque de Snowdon, 1930-2017 | 0 | | 3.
| Author is: Snowdon, Conde de, 1930-2017 | 2 | | 4.
| Duque, Félix | 8 | | 5.
| Duque, Ilídio, 1954- | 1 | | 6.
| Duque, Ilídio Rosário, 1954- | 0 | | 7.
| Author is: Duque, Ilídio, 1954- | 1 | | 8.
| Duque, João | 1 | | 9.
| Duque, José Félix | 2 | | 10.
| Duque y Merino, Demetrio | 1 | | 11.
| Duquesne, Jacques | 2 | | 12.
| Duquesne, Joseph | 1 |
|
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