| Author | Titles | | 1.
| Gardel, Luis D. | 1 | | 2.
| Gardella, Ignazio, 1905- | 2 | | 3.
| Gardelli Giordano | 1 | | 4.
| Gardelli, Giuliana | 1 | | 5.
| Gardet, Clément | 2 | | 6.
| Gardet, Georges | 1 | | 7.
| Gardete, Dinis Correia | 1 | | 8.
| Gardette, Grégoire | 2 | | 9.
| Gardi, René | 1 | | 10.
| Gardimer, Samuel Rawson | 1 |
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