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. EDU [Internet]. 1 de mayo de 1970 [citado 16 de abril de 2024];4(02):255. Disponible en: https://estudiosdemograficosyurbanos.colmex.mx/index.php/edu/article/view/1538