| Author | Titles | | 1.
| Quilligan, Maureen | 1 | | 2.
| Quillinan, Dorothy | 2 | | 3.
| Quillinan, Edward | 5 | | 4.
| Quilliot, Roland | 1 | | 5.
| Quilty, Ben, 1973- | 1 | | 6.
| Quimbach, Yvonne | 3 | | 7.
| Quimicor (Porto, Portugal) | 1 | | 8.
| Quin, John | 3 | | 9.
| Quina, 1941- | 0 | | 10.
| Author is: Quina (nome de artista) | 6 | | 11.
| Quina, Antónia | 1 |
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