| Author | Titles | | 1.
| Thonnard, F. J. | 1 | | 2.
| Thonnard, François Joseph | 2 | | 3.
| Thönnissen, Karin | 1 | | 4.
| Thoor, Marie-Thérèse van | 1 | | 5.
| Thopas, Johannes, 1626-1700 | 1 | | 6.
| Thor, Lars | 1 | | 7.
| Thoramanian, Thoros, 1864- | 1 | | 8.
| Thoraval, Yves | 4 | | 9.
| Thorbeck, Dewey | 1 | | 10.
| Thorburn, Patricia | 2 |
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