| Author | Titles | | 1.
| Papini, Giovanni, 1881-1956 | 12 | | 2.
| Papini, Pietro | 1 | | 3.
| Papini, Roberto, 1883-1957 | 4 | | 4.
| Papone, Elisabetta | 1 | | 5.
| Papoulias, Christos | 1 | | 6.
| Papp, Desiderio | 1 | | 7.
| Papp, Gábor György | 1 | | 8.
| Papp, I. V. | 1 | | 9.
| Pappalardo, Arnaldo, 1954- | 2 | | 10.
| Pappalardo, Umberto, 1949- | 5 |
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