Abeywickrama, B. A The Genera of the freshwater algae of Sri Lanka, Part ii - Colombo The National Science Council of Sri Lanka 1986 - [2],45 p. - Unesco : Man and the Biosphere National Committee for Sri Lanka, Publication No. - 15 . Subjects--Topical Terms: Freshwater AlgaePAMPHLET BOX 65SCIENCE COUNCIL