HELFELD, David M. JOHN D. HOGAN and FRANCIS A. J. IANNI, American Social Legislation, Nueva York: Harper and Brothers, 1956, 713 págs. Revista de Ciencias Sociales, [S. l.], n. 2, p. 262–266, 1958. Disponível em: https://revistas.upr.edu/index.php/rcs/article/view/9962. Acesso em: 16 ago. 2024.