Riestra, Miguel A. «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, no. 3 (enero 1, 1971): 409–411. Accedido mayo 4, 2024. https://revistas.upr.edu/index.php/rcs/article/view/9026.