Coller, R. W. (1960). Barrio Gacao: A study of village ecology and the Schistosomiasis problem. Community Development Research Council, University of the Philippines.
Lua i Stíl Chicago (17ú heag.)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.
Lua MLA (9ú heag.)Coller, Richard W. Barrio Gacao: A Study of Village Ecology and the Schistosomiasis Problem. Community Development Research Council, University of the Philippines, 1960.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.