| Author | Titles | | 1.
| Piper, David Warren | 1 | | 2.
| Piper, John, 1903-1992 | 3 | | 3.
| Piper, John Egerton Christmas, 1903-1992 | 0 | | 4.
| Author is: Piper, John, 1903-1992 | 3 | | 5.
| Piper, Keith, 19--?- | 1 | | 6.
| Piper, Myfanwy | 1 | | 7.
| Piperger, Justin | 1 | | 8.
| Pipkin, Oscar | 1 | | 9.
| Piponnier, Françoise | 1 | | 10.
| Pippan, Francisco, Padre | 2 | | 11.
| Pippidi, D. M. | 6 |
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