| 100 Years at Mount, 1918 - 2018, A History of S. Thomas\\\' College at Mount Lavvinia | N/A | N/A | 2018 | General |
| 130th Anniversary, Commemoration Volume, Attorney Generals Law Journal , Vol 1 | Yasantha | Kodagoda | 2015 | General |
| 16th Century Clash of Civilizations, A - The Portuguese Presence in Sri Lanka | Susantha | Goonatilake | 2010 | History |
| 1975 - 2014 Sri Lanka | Malinda | Seneviratne | 2014 | General |
| 99 Park Street | Ian | Anthonisz | 2018 | General |
| A - Z Street Guide (Colombo & Suburbs) | T. | Somasekeram | 1997 | General |
| A Cause Untrue | David | Blacker | 2006 | Literature |
| A Gaggle of Aunts - Stories of My Childhood | Srini | Peries | 2004 | Literature |
| A Man Called \"Ceylon\", Heritage is What You Make of It | Somasiri | Devendra | 2020 | General |
| A Sheaf of Gleanings - Obiter Scripta Et Dicta | Lucien | De Zilwa | N/A | General |
| A to Z Colombo - Atlas & Street Index | N/A | N/A | 1974 | General |
| A World of Poverty To Be Conquered - Speech by Hon.R.Premadasa | N/A | N/A | 1983 | Politics |
| A. M. A. Azeez - A Profile | S.H.M. | Jameel | 2007 | General |
| A.P.de Zoysa, Combative Social Democrat & Buddhist Reformer | Kumari | Jayawardena | 2012 | General |
| Abhayagiri Project, Anuradhapura, First Architectural Conservation Report | Ministry of Cultural Affairs | N/A | 1989 | General |
| Abhayagiri Project, Cultural Triangle, First Excavation Report | Chandra | Wikramagamage | 1984 | General |
| Accident Free Highway, The - An Exposition of the Noble Eight Fold Path | Ve. Talalle Chandakiththi | Theor | 2015 | Religion |
| Account of Mr Pybus's Mission to the King of Kandy in 1762 | Madras Government Records | N/A | 1862 | History |
| Account of the Captivity in the Island of Ceylon and of the Miraculous Escape | Robert, Capt | Knox | 1979 | History |
| Account of the Interior of Ceylon, An | John | Davy | 1990 | General |
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