| Development Of Dry Zone Agriculture | O.S. | Peries | 1967 | General |
| Development of Talent, Discipline & Values - Speech by Hon. R. Premadasa | N/A | N/A | 1990 | General |
| Development of the Poor Through the Civilizing of the Rich, The | Rev. Fr Tissa | Balasuriya | 1972 | General |
| Development Under Stress - Sri Lankan Economy in Transition | Saman | Kelegama | 2006 | General |
| Devil Birds of Ceylon, The | R.L. | Spittel | 1968 | General |
| Devolution and Development in Sri Lanka | Sunil | Bastian | 1994 | General |
| Devolution Proposals of the Lankan Government, The | ASCSLU | N/A | 1995 | General |
| Dhamma Reflections - Essays | Bhikkhu | Bodhi | 2015 | Religion |
| Dhammapada, The or Way of Truth | Silacara (Bhikkhu) | N/A | 1915 | Religion |
| Dhammapada, The Way of Truth | Peter | Feldmeier | 2013 | Religion |
| Dharmista Budget, The | Pieter | Keuneman | N/A | Politics |
| Diabolical Conspiracy - Speeches of Hon Cyril Mathew | N/A | N/A | N/A | Politics |
| Dialogue With Asian Religions As Condition For Total Human Development | Sri Lanka Foundation Institute | N/A | 1978 | General |
| Diamond Jubilee Souvenir, The Ceylon Planter's Society, 1936-2011 | N/A | N/A | 2011 | General |
| Dianne's Diary - Extracts from a Personal 'Day Book' | Dianne | N/A | 2006 | Literature |
| Diaries in Ceylon 1908-1911 - Records of A Colonial Administrator | Leonard | Woolf | 1983 | General |
| Diary of Mr John D'Oyly | H.W. | Codrington | 1917 | History |
| Dice of The Gods, The - A Tale of Ceylon | Lucian | De Zilwa | 1940 | General |
| Dictionary - Sinhalese - English, English - Sinhalese | T., Rev | Moscrop | 1992 | General |
| Dictionary of the Sinhalese Language, A - Vol 1, Part 3 | D.B., Sir | Jayatilaka | 1938 | General |
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