| Trekkers' Guide to Sri Lanka | Joanne | Leestemaker | 1994 | General |
| Trends In Causes of Death in Sri Lanka: 1971 - 1979 | K.H.W. | Gaminiratne | 1984 | General |
| Tri Simhala, The Last Phase 1796-1815 | P.E. | Pieris | 1945 | History |
| Trial of Lenduwa Lokuge Jayawardene | A.C.M. | Ameer | N/A | General |
| Trial of Pauline De Croos | Tyronne | Fernando | 1973 | General |
| Trials of Transition in the Island of the Sun | Tarzie | Vittachi (Flybynight) | N/A | General |
| Tribal Guerrilas (Santals of West Bengal & the Naxalite Movement) | Edward | Duyker | 1987 | General |
| Tribal Hangover, The | James | Goonewardene | 1995 | Literature |
| Tribute To An Asian Statesman's Vision - A.Ratnayake | N/A | N/A | 1971 | Politics |
| Tribute to Malalasekera | Nemsiri | Mutukumara | 1981 | General |
| Trigonometrical & Cadastral Survey of Ceylon | Govt of Ceylon | N/A | 1882 | General |
| Trincomalee Bronzes - An Inquiry Into Their Origin & Impact on Ceylon History | W., Dr | Balendra | 1953 | General |
| Trinity | Ramya Chamalie | Jirasinghe | 2008 | General |
| Trinity College One Hundred Years 1872 - 1972 | Trinity College, Kandy | N/A | 1972 | General |
| Tropical Agriculturist, The - Vol LXVII, No 2, 1926 | Dept of Agriculture | N/A | 1926 | General |
| Tropical Beach Handbook | Nick | Hanna | 1989 | General |
| Tropical Blossoms Of The Pacific | Dorothy | Hargreaves | 1970 | General |
| Tropical Development 1880-1913 - Studies in Economic Progress | W. Arthur | Lewis | 1970 | General |
| Tropical Marine Aquaria | Graham F. | Cox | 1977 | General |
| Tropical Nutrition and Dietetics | Lucius | Nicholls | 1945 | General |
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