| Field Guide to National Parks of Sri Lanka, A - Dept of Wildlife Conservation | N/A | N/A | 2001 | General |
| Field Guide to the Bats of Sri Lanka, A | Wipula Bandara | Yapa | 2017 | General |
| Field Guide to the Birds of Sri Lanka, A | John | Harrison | 1999 | General |
| Field Guide to the Birds of Sri Lanka, A | Sarath | Kotagama | 1995 | General |
| Field Guide to the Dragonflies & Damselflies of Sri Lanka, A | Amila Prasanna | Sumanapala | 2017 | General |
| Field Laboratory Research - A Collection of Papers | Agrarian Research & Training Institute | N/A | 1980 | General |
| Fiery Finale, A | Tissa | Devendra | 2014 | General |
| Fifity Years of Co-Operative Development in Ceylon | Tilak E. | Gooneratne | 1966 | General |
| Fiftieth (50) Saga of Josephian Peterite Cricket, The | N/A | N/A | N/A | General |
| Fifty Questions About Catholicism | W.L.A., Rev. Fr | Don Peter | 2000 | Religion |
| Fifty Years in Cartoons | ANCL | N/A | 1998 | General |
| Fifty Years in Ceylon | Thomas, Major | Skinner | 1974 | General |
| Fifty Years in Ceylon An Autobiography | Thomas | Skinner | 1995 | General |
| Fifty Years of Independence - Sri Lanka Police | Chandra | Fernando | 1998 | General |
| Fiji, Sri Lanka & India: The Connections | QASLU | N/A | 1988 | General |
| Film Festivals - A Third World Assessment | Neil I. | Perera | N/A | General |
| Final Report of the Commission of Inquiry Into Involuntary Removal & Disappearance of Certain Persons (All Island) - Vol 1 | N/A | N/A | 2001 | General |
| Final Report of the Press Commission | Govt of Sri Lanka | N/A | 1964 | General |
| Final Report on Air Ceylon in all its Aspects etc and to Recommend Remedial Measures | Govt of Sri Lanka | N/A | 1978 | General |
| Financial Horizons | A.J. | Aseervatham | 2009 | General |
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