| Autor | Títulos | | 1.
| Simpson, Helen | 3 | | 2.
| Simpson, Ian | 1 | | 3.
| Simpson, Jacqueline | 1 | | 4.
| Simpson, Jane, 1965- | 1 | | 5.
| Simpson, John | 1 | | 6.
| Simpson, Lesley Byrd | 1 | | 7.
| Simpson, Lorna, 1960- | 1 | | 8.
| Simpson, Marc | 5 | | 9.
| Simpson, Margaret Winefride | 1 | | 10.
| Simpson, Marianna Shreve | 3 |
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