| Autor | Títulos | 1.
| Póvoas, Rui Fernandes | 1 | 2.
| Powell, Ann | 1 | 3.
| Powell, Audrey | 1 | 4.
| Powell, Catherine | 1 | 5.
| Powell, Cecilia | 4 | 6.
| Powell, Dilys | 3 | 7.
| Powell, Earl A. | 3 | 8.
| Powell, Earl N. | 2 | 9.
| Powell, Edgar, pseud. | 0 | 10.
| Ver: Amorim, António Guedes de, 1901-1979 | 24 | 11.
| Powell, Edward Alexander | 1 |
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