García y Garma IO. Donald P. Warwick, Bitter Pills, Population Policies & Their Implementation in eight developing countries, Cambridge University Press, 1983, 229 p. EDU [Internet]. 1 de julio de 1984 [citado 26 de abril de 2024];18(03):493-5. Disponible en: https://estudiosdemograficosyurbanos.colmex.mx/index.php/edu/article/view/1674