| Profiling Sri Lankan Cinema | Wimal | Dissanayake | 2000 | General |
| Profits of War - World-Wide Arms Conspiracy | Ari | Ben-Menashe | 1992 | General |
| Progress - Vol 4, No 1, March 1984 | Ministry of Plan Implementation | N/A | 1984 | General |
| Progress - Vol 4, No 2, June 1984 | Ministry of Plan Implementation | N/A | 1984 | General |
| Progress - Vol 5, No 1, March 1985 | Ministry of Plan Implementation | N/A | 1985 | General |
| Progress - Vol 5, No 3, September 1985 | Ministry of Plan Implementation | N/A | 1985 | General |
| Progress 1909 - 1959 A. M. M. Abdul Cader ( A.M.M.A.C.) | N/A | N/A | 1959 | General |
| Progress 1986 | Ministry of Coconut Industries | N/A | 1986 | General |
| Progress of the Colombo Plan 1967-1968 | Colombo Plan Bureau | N/A | 1969 | General |
| Progressive Grammar of Common Tamil, A | A.H. | Arden | 1934 | General |
| Progrss of the Colombo Plan | Colombo Plan Bureau | N/A | 1966 | General |
| Projects of National Development | The Colombo Plan | N/A | 1972 | General |
| Proposals Sent to the Govt of India by the Govt of Sri Lanka | Govt of Sri Lanka | N/A | 1986 | General |
| Proposed Foreign Investment Authority Law of Sri Lanka, The - A Critical Analysis | Senaka | Weeraratna | 1982 | General |
| Proposed Scheme of Church Union in Ceylon | N/A | N/A | N/A | Religion |
| Prose Selections | G. P. D. | Senaratne | 2001 | Literature |
| Prospects for Peace in Sri Lanka | N/A | N/A | 1986 | General |
| Prospectus 1984 (SLIDA) | Sri Lanka Institute of Development Administration | N/A | 1984 | General |
| Protection - Lectures & Articles | K. | Balasingham | N/A | Politics |
| Protestant Christianity - Will It Survive in Ceylon | P.G. | de Silva | 1956 | Religion |
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