| Author | Titles | | 1.
| Forgues, Roland, 1944- | 1 | | 2.
| Forin, Elena | 2 | | 3.
| Forissier, Béatrix | 1 | | 4.
| Forjaz, António Pereira, 1893-1972 | 16 | | 5.
| Forjaz, Augusto, 1865-1922 | 6 | | 6.
| Forjaz, Cândido Pamplona, 1901-1987 | 1 | | 7.
| Forjaz, Henrique | 2 | | 8.
| Forjaz, Joaquim, frei | 1 | | 9.
| Forjaz, Jorge | 3 | | 10.
| Forjaz, José, 1936-2024 | 10 |
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