| Citizenship Law of the Republic of Sri Lanka (Ceylon), The | L.L.T. | Peiris | 1974 | General |
| Citronella | Clodagh | Nethsingha | 1976 | General |
| Citronella Industry in the Hambantota District, The | Mahinda | Perera | 1978 | General |
| Cittaviveka - Teachings From The Silent Mind | Ajahn | Sumedho | 1992 | Religion |
| City As Text, The: the Politics of Landscape Interpretation in the Kandyan Kingdom | James S. | Duncan | 1990 | History |
| City of the Lion | Carl | Muller | 2011 | Literature |
| Civil Procedure Code | T.B. | Dissanayake | 1970 | General |
| Civil Procedure in Ceylon | K.D.P. | Wickremesinghe | 1971 | General |
| Civil Service Administration in Ceylon - A Study in Bureaucratic Adaptation | W.A.Wiswa | Warnapala | 1974 | General |
| Civil Society in Sri Lanka - New Circles of Power | Nira | Wickramasinghe | 2001 | General |
| Civil Society in Sri Lanka - Symposium papers | G.L. | Peiris | 1996 | General |
| Classic & Vintage Automobiles of Ceylon | Asgi | Akbarally | 2013 | General |
| Classical Dance of Sri Lanka, The - Kandyan Dance | Sicille P. C. | Kotelawala | 1998 | General |
| Classical Dictionary of Hindu Mythology, A | John | Dowson | 1968 | Religion |
| Classical Sinhalese Sculpture 300BC - AD 1000 | D.T. | Devendra | 1958 | General |
| Clerk Reminisces, A | Nihal | Seneviratne | 2017 | General |
| Cliff House Mansion | Mahasara | Gunaatna | 2001 | Literature |
| Clothing - 1st Quarter 1991 - Clothing IndustryMagazine | Nalin | Wijesekera | 1991 | General |
| Co-operative System & Rural Credit in Sri Lanka, The | Marga Institute | N/A | 1974 | General |
| Coastal Erosion Hazard Southwest Sri Lanka, The | Bernard | Swan | 1974 | General |
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