Coller, R. W. (1960). Barrio Gacao: A study of village ecology and the schistosomiasis problem. Community Development Research Council, University of the Philippines.
Chicago-viite (17. p.)Coller, Richard W. Barrio Gacao: A Study of Village Ecology and the Schistosomiasis Problem. Quezon City: Community Development Research Council, University of the Philippines, 1960.
MLA-viite (9. p.)Coller, Richard W. Barrio Gacao: A Study of Village Ecology and the Schistosomiasis Problem. Community Development Research Council, University of the Philippines, 1960.
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