| Author | Titles | | 1.
| Willems, Roger, 1969- | 6 | | 2.
| Willemse, David | 3 | | 3.
| Willemsen, August | 3 | | 4.
| Willemsen, Merel | 2 | | 5.
| Willems-Treeman, Elizabeth | 2 | | 6.
| Willemsz de Wet, Jacob, 1610-1675 | 1 | | 7.
| Willer, Mirna | 2 | | 8.
| Willer, Thérèse | 2 | | 9.
| Willerval, Jean | 1 | | 10.
| Willes, Margaret | 1 |
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