Abeynayake, K. (1992). An environmental profile of the Kalutara District. Central Environmental Authority : Ministry of Environment & Parliamentary Affairs.
Chicago-referens (17:e uppl.)Abeynayake, K. An Environmental Profile of the Kalutara District. Colombo, Sri Lanka: Central Environmental Authority : Ministry of Environment & Parliamentary Affairs, 1992.
MLA-referens (8:e uppl.)Abeynayake, K. An Environmental Profile of the Kalutara District. Central Environmental Authority : Ministry of Environment & Parliamentary Affairs, 1992.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.