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| Martin Wickramasinghe Trust - Language, Culture & National Conciousness | Yulian, Professor | Bromley | 1980 | General |
| Martyrs of Mannar, The | A. J. B., Rev Fr | Antoninus | 1983 | Religion |
| Mary & Human Liberation, Logos, Vol 29, No\'s ! & @ | Tissa | Balasuriya | 1990 | Religion |
| Masks & Mask Systems of Sri Lanka | M.H. | Goonatilleka | 1978 | General |
| Masks of Sri Lanka | M.H. | Goonatilleka | 1976 | General |
| Matara District Integrated Rural Development Project | Agrarian Research & Training Institute | N/A | 1983 | General |
| Matchmaker, The | T.B. | Ilangaratne | 1974 | Literature |
| Mathew Peiris: From Mysticism to Murder | A.C. | Alles | 1992 | General |
| Matter of Timing, A | John | Riminton | N/A | General |
| Matters of Violence - Social & Political Violence in Sri Lanka | Jayadeva | Uyangoda | 1997 | General |
| Maturing in Ceylon, 75 Not Out - An Excursion Into the Near Past | J.Vincent | Mendis | 1968 | General |
| Meanings of the Sigiriya Paintings | Benille | Priyanka | 2016 | History |
| Mechanics of Constitutional Change The Sri Lankan Style | D.C. | Jayasuriya | 1981 | Politics |
| Media & the Ethnic Conflict in Sri Lanka, The (Marga 19/19) | Thiru | Kandiah | 2001 | General |
| Media Guide of Sri Lanka, Year 2000 | Dharman | Wickremaratne | 2000 | General |
| Mediaeval Sinhalese Art | Ananda K. | Coomaraswamy | 1979 | General |
| Medical Profession in Sri Lanka 1843 - 1980, The | Kamalika | Pieris | 2001 | General |
| Medicinal Plants Used in Ceylon - Part 1 (Aca-Burs) | D.M.A. | Jayaweera | 1981 | General |
| Medicinal Plants Used in Ceylon - Part 2 (Cact-Faga) | D.M.A. | Jayaweera | 1980 | General |
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