Coller, R. W. (1960). Barrio Gacao: A study of village ecology and the schistosomiasis problem. Community Development Research Council.
Chicago-referens (17:e uppl.)Coller, Richard W. Barrio Gacao: A Study of Village Ecology and the Schistosomiasis Problem. Quezon City: Community Development Research Council, 1960.
MLA-referens (9:e uppl.)Coller, Richard W. Barrio Gacao: A Study of Village Ecology and the Schistosomiasis Problem. Community Development Research Council, 1960.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.