| Author | Titles | 1.
| Wuthenau, Alexander von | 1 | 2.
| Wüthrich, Peter, 1962- | 2 | 3.
| Wutz, Michael | 1 | 4.
| Wutzelaar, Wouter, 1960- | 1 | 5.
| WWF - World Wildlife Fund for Nature Gland (Suiça) | 1 | 6.
| Wyatt, David K. | 1 | 7.
| Wyatt, Honor | 1 | 8.
| Wyatt, S. S. | 3 | 9.
| Wyatt-Cattaneo | 1 | 10.
| Wyburn, Carla | 2 |
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