A. G. R., R. C. H. G. Oldham, International Migration of Talents from and to the Less-Developed Countries, Ditchley Paper, no. 13, Inglaterra, The Ditchley Foundation, 1968. 29 p. Estudios Demográficos y Urbanos, [S. l.], v. 4, n. 02, p. 255, 1970. DOI: 10.24201/edu.v4i02.1538. Disponível em: https://estudiosdemograficosyurbanos.colmex.mx/index.php/edu/article/view/1538. Acesso em: 20 abr. 2024.