APA
(1982). Improving the Physical Environment of Sri Lanka Primary Schools. Bangkok: UNESCO Regional Office for Education in Asia and the Pacific.
Chicago
1982. Improving the Physical Environment of Sri Lanka Primary Schools. Bangkok: UNESCO Regional Office for Education in Asia and the Pacific.
Harvard
(1982). Improving the Physical Environment of Sri Lanka Primary Schools. Bangkok: UNESCO Regional Office for Education in Asia and the Pacific.
MLA
Improving the Physical Environment of Sri Lanka Primary Schools. Bangkok: UNESCO Regional Office for Education in Asia and the Pacific. 1982.