| Author | Titles | | 1.
| Thill, Edmond | 1 | | 2.
| Thilmany, Robert | 1 | | 3.
| Thimonnier, Jean | 1 | | 4.
| Think Tank Gulbenkian sobre a Água e o Futuro da Humanidade, Lisboa, 2010-2012 | 1 | | 5.
| Thiolier, Hubert | 1 | | 6.
| Thiollier, Christiane | 1 | | 7.
| Thiollier, Félix, 1842-1914 | 1 | | 8.
| Thiollière, Michel | 1 | | 9.
| Thioub, Ibrahima | 1 | | 10.
| Third Angel (Companhia de Teatro) | 2 |
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