Villegas, A. E. (1987). A survey on the knowledge, attitude, and practice of family planning among population program professionals in Region XII. Socio-Economic Research Center, Notre Dame University.
Citação do estilo Chicago (17ª ed.)Villegas, Alfonso E. A Survey on the Knowledge, Attitude, and Practice of Family Planning Among Population Program Professionals in Region XII. Cotabato City: Socio-Economic Research Center, Notre Dame University, 1987.
Citação MLA (8ª ed.)Villegas, Alfonso E. A Survey on the Knowledge, Attitude, and Practice of Family Planning Among Population Program Professionals in Region XII. Socio-Economic Research Center, Notre Dame University, 1987.
Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.