| RAS Journal - Vol XXXI, No 81, Pts 1,2,3,4 | Royal Asiatic Society | Ceylon Branch | 1928 | General |
| RAS Journal - Vol XXXI, No 82, Pts 1,2,3,4 | Royal Asiatic Society | Ceylon Branch | 1929 | General |
| RAS Journal - Vol XXXIII, No 89, Pts 1,2,3,4 | Royal Asiatic Society | Ceylon Branch | 1936 | General |
| RAS Journal - Vol XXXIV, No 91, Pts 1,2,3,4 | Royal Asiatic Society | Ceylon Branch | 1938 | General |
| RAS Journal - Vol XXXV, No 93 | Royal Asiatic Society | Ceylon Branch | 1940 | General |
| RAS Journal, Vol IV, No 13, (1865-1866) - Reprint | Royal Asiatic Society | Ceylon Branch | 1954 | General |
| Ratnapura - As Seen by Government Agents | Malcolm | Abeyaratne | N/A | General |
| Ravana Dynasty in Sri Lanka's Dance Drama ( Kohomba Kankaatiya) | Theja | Gunawardhana | 1977 | General |
| Ravana King of Lanka | M.S.Purnalingam | Pillai | 1993 | History |
| Ravana The Great King of Lanka | M. S. Purnalingam | Pillai | 1993 | History |
| Reaching The Unreached | A.T. | Ariyaratne | 1988 | General |
| Reading Profile on Abortion - No 4, 1983 | Population Information Centre | N/A | 1983 | General |
| Reading Profile on Contraception - No 5, 1984 | Population Information Centre | N/A | 1984 | General |
| Reading Profile on Demography - No 3, 1983 | Population Information Centre | N/A | 1983 | General |
| Reading Profile on Population Policy | Population Information Centre | N/A | 1983 | General |
| Real Ceylon, The | C.Brooke | Elliott | 1938 | General |
| Reaping The Worldwind - Ethnic Conflict, Ethnic Politics in Sri Lanka | K.M. | de Silva | 1998 | General |
| Rebel of Kandy, The | C.Gaston | Perera | 1999 | History |
| Rebel, The | Punyakante | Wijenaike | 1979 | Literature |
| Rebellion of 1848, The - Letters on Ceylon 1846-50 | K.M. | de Silva | 1965 | History |
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