| Leopards & other Wildlife of Yala | Gehan | de Silva Wijeyaratne | 2004 | General |
| Lester by Lester | Kumar | de Silva | 2007 | General |
| Lester James Peries Collected Works | Piyasena | Wickramage | 2000 | General |
| Lester James Peries, Life & Work LJP | A. J. | Gunawardene | 2005 | General |
| Let My People Go | S.J. | Emmanuel | 1997 | General |
| Let Us Tread The Path of Non-Violence - Speech by President Jayewardene | Ministry of State | N/A | 1983 | General |
| Let's Give Therm Curry - An Austral-Asian Comedy in Three Acts | Ernest | Macintyre | 1981 | General |
| Let's Go Somewhere | Carmini | Sinnetamby | 1979 | General |
| Letchimey - A Tale of Old Ceylon | Sinnatamby | N/A | 1898 | General |
| Lets Learn Sinhala - Vol 1, Vowels & Consonants | J. B. | Disanayaka | 2003 | General |
| Lets look At Our Birds - A Child's Introduction to Bird Watching | Sita | De Saram | 2001 | General |
| Lets Read & Write Sinhala | J.B. | Dissanayake | 1993 | General |
| Letters on Ceylon Particularly Relative to the Kingdom of Kandy | L., Capt | De Bussche | 1999 | History |
| Letters To Ceylon 1814-1824 - Being Correspondence Addressed to Sir John D'Oyly | P.E. | Pieris | 1938 | History |
| Let\'s Learn Sinhala - Vol 2, Vowels & Strokes | J. B. | Disanayaka | 2003 | General |
| Liberation of the Living Faiths of Asia - Quest 54 | Michael, Rev Fr | Rodrigo | 1979 | Religion |
| Liberation Theology On Trial - Logos - Vol 23, No 4, 1984 | Centre For Society & Religion | N/A | 1984 | Religion |
| Libraries & People - Colombo Public Library 1925-1975 | Ishvari | Corea | 1975 | General |
| Library Services for Ceylon | Harold V. | Bonny | N/A | General |
| Libyan Episode, The - A Romance of the Tea Trade | Wilfrid | Jayasuriya | 1996 | Literature |
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