Riestra, M. A. (1971) «ERWIN H. EPSTEIN, Politics and education in Puerto Rico. A Documentary survey of the language issue, Tbe Scarecrow Press, Inc., Metuchen, N.]., 1970»., Revista de Ciencias Sociales, (3), pp. 409–411. Disponible en: https://revistas.upr.edu/index.php/rcs/article/view/9026 (Accedido: 4 mayo 2024).