| test title | test AuthorFirst | test AuthorLast | 1236 | History |
| test1605 | asitha1 | gurusinghe | 1978 | General |
| Tetrapod Reptiles of Ceylon - Vol 1, Testudinates & Crocodilians | P.E.P. | Deraniyagala | 1939 | General |
| Tewatte - A Short Historical Sketch | Phillip, Rev. Fr | Dissanayake | 1947 | Religion |
| Text Book of Arithmetic for Ceylon Schools, A | T. | Jacob | 1962 | General |
| Text book of Rural Science, A | L.J. Peter | Perera | 1939 | General |
| Text Book of the Law of Evidence in Ceylon, A | E. R. S. R. | Coomaraswamy | 1955 | General |
| Texts of the Cave Inscriptions at Handagala Vihara | C.W. | Nicholas | N/A | History |
| Thamba of Royal | T.D.S.A. | Dissanayaka | 1997 | General |
| That's How It Goes - Autobiography of a Singapore Eurasian | F. A. C. | Oehlers | 2008 | General |
| Thatched Patio, The - Vol 3, No 2, March/April 1990 | ICES | N/A | 1990 | General |
| Thatched Patio, The - Vol 3, No 3, 1990 | International Centre For Ethnic Studies | N/A | 1990 | General |
| Thatched Patio, The - Vol 4, No 3, 1991 | International Centre For Ethnic Studies | N/A | 1991 | General |
| Thatched Patio, The - Vol 5, No 6, 1992 | International Centre For Ethnic Studies | N/A | 1992 | General |
| Thatched Patio, The - Vol 8, No 1-6, Jan-Dec 1995 | N/A | N/A | 1995 | General |
| Thatched Patio,The - Vol 3, No 4, 1990 - Feminist Legal Theory | Brenda | Cossman | 1990 | General |
| Thattumaru & Kattimaru Systems of Rotation of Cultivation of Paddy Land | P. | Ganewatte | 1974 | General |
| The Antonian - Magazine of St Anthony's College, Kandy | St Anthony's College | N/A | 1930 | General |
| The Catholic Church in Sri Lanka, The British Period, Vol IX, 1893-1923, The Diocese of Galle | Rev. Fr. V | Perniola | 2004 | Religion |
| The Catholic Church in Sri Lanka, The British Period, Vol VIII, 1887-1899 - The Archdiocese of Colombo | V., Rev. Fr | Perniola | 2004 | Religion |
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