PEÑA, R. de la. Héctor Correa. Quantitative methods of educational planning. Scranton, Pennsilvania : International Textbook Company, 1969. 242 p. Estudios Demográficos y Urbanos, [S. l.], v. 5, n. 01, p. 110–111, 1971. DOI: 10.24201/edu.v5i01.160. Disponível em: https://estudiosdemograficosyurbanos.colmex.mx/index.php/edu/article/view/160. Acesso em: 16 jul. 2024.