| Author | Titles | | 1.
| Garreta, Ariadna Alvarez | 1 | | 2.
| Garreta, Virginia | 1 | | 3.
| Garrett, Alexander | 1 | | 4.
| Garrett, Almeida, 1799-1854 | 145 | | 5.
| Garrett, Almeida, 3o Visconde de, 1909- | 1 | | 6.
| Garrett, Antão de Almeida, 1896-1961 | 5 | | 7.
| Garrett, César | 1 | | 8.
| Garrett, Elisabeth Donaghy | 12 | | 9.
| Garrett, Francisco d'Almeida | 1 | | 10.
| Garrett, Helena | 1 |
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