| Colebrooke-Cameron Papers, The - Vol 1 | G.C. | Mendis | 1956 | History |
| Colebrooke-Cameron Papers, The - Vol 2 | G.C. | Mendis | 1956 | History |
| Collapse of the Rajarata Civilization, The | K. | Indrapala | 1971 | History |
| Collected Poems | Yvonne | Gunawardena | 2005 | Literature |
| Collected Short Stories, The | Maureen | Seneviratne | 1999 | Literature |
| Collected Speeches - Dr Anandatissa De Alwis | N/A | N/A | N/A | Politics |
| Collected Stories | Rabindranath | Tagore | 1974 | Literature |
| Collected Works - Vol 1- A.T. Ariyaratne | A.T. | Ariyaratne | N/A | General |
| Collected Works - Vol 2 - A.T.Ariyaratne | A.T. | Ariyaratne | 1980 | General |
| Collected Works - Vol 3 - A.T.Ariyaratne | A.T. | Ariyaratne | 1985 | General |
| Collected Works - Vol 4 - A.T.Ariyaratne | A.T. | Ariyaratne | 1989 | General |
| Collected Works of Mahatma Gandhi - Vol 35 | N/A | N/A | 1969 | General |
| Collection of Cartoons by Wijesoma, A | W.R. | Wijesoma | 1985 | General |
| Collection of Speeches on Housing Development - Hon. R. Premadasa | Min of Local Government | N/A | 1987 | Politics |
| Collections & Recollections | Decima | Perera | 2003 | Literature |
| Collective Identities Nationalisms & Protest in Modern Sri Lanka | Michael | Roberts | 1979 | General |
| Collective Violence and Everyday Practice in Sri Lanka | Jonathan | Spencer | 1993 | General |
| Colloquial Sinhalese Through Easy Way | D.R. | Wijegoonewardane | 1951 | General |
| Colloquial Tamil - As Understood by Labourers on Tea & Rubber Estates | W.G.B. | Wells | 1941 | General |
| Colombo | L.E. | Blaze | 1926 | General |
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