| Author | Titles | | 1.
| La Penna, Pierlorenzo | 1 | | 2.
| Penna, Vasiliki, 1952-2018 | 2 | | 3.
| Pennac, Daniel 1944- | 3 | | 4.
| Pennafort, Onestaldo de | 1 | | 5.
| Pennanen, Marja | 1 | | 6.
| Pennati, Camillo | 1 | | 7.
| Penne, R. Leo | 1 | | 8.
| Pennec, Hervé | 1 | | 9.
| Pennell, Joseph, 1857-1926 | 1 | | 10.
| Penney, Clara Louisa | 2 |
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