| Author | Titles | | 1.
| Betancourt, Jonh | 1 | | 2.
| Betancourt y Molina, Augustín de 1758-1824 | 1 | | 3.
| Bétant, Jacques | 2 | | 4.
| Bétard, Daphné | 2 | | 5.
| Betencourt, Brito | 1 | | 6.
| Betencourt, Cardoso de | 2 | | 7.
| Betencourt, J. Barbosa de | 2 | | 8.
| Betencourt, Jacinto de | 1 | | 9.
| Betencourt, Luís Filipe de | 1 | | 10.
| Betencourt, Rebelo de | 2 |
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