| Author | Titles | | 1.
| Gregori, Elisa | 1 | | 2.
| Gregori, Guglielma, 1924- | 0 | | 3.
| Author is: Gregori, Mina, 1924- | 7 | | 4.
| Gregori, Guglielma Mina, 1924- | 0 | | 5.
| Author is: Gregori, Mina, 1924- | 7 | | 6.
| Gregori, Mina, 1924- | 7 | | 7.
| Gregorian, Arthur T. | 2 | | 8.
| Gregorian, Edmundo | 1 | | 9.
| Gregorian, Vartan | 2 | | 10.
| Gregorietti, Guido | 2 | | 11.
| Gregorio, Eduardo, 1903-1974 | 1 | | 12.
| Gregório, Filipa | 2 |
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