LEÓN, Ramón. Thomas, H. & Maddox. G. L. eds. (1982), .New perspectives on old age. A message to decision makers. New York: Springer Publishing Company. XII 146 pgs. Revista de Psicología, [S. l.], v. 3, n. 2, p. 244–245, 1985. DOI: 10.18800/psico.198502.011. Disponível em: https://revistas.pucp.edu.pe/index.php/psicologia/article/view/7536. Acesso em: 28 dic. 2025.