Coller, R. W. (1960). Barrio Gacao: A study of village ecology and the schistosomiasis problem. Community Development Research Council, University of the Philippines.
Cita Chicago (17th ed.)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.
Cita MLA (9th ed.)Coller, Richard W. Barrio Gacao: A Study of Village Ecology and the Schistosomiasis Problem. Community Development Research Council, University of the Philippines, 1960.
Atenció: Aquestes cites poden no estar 100% correctes.