Pellicer de Brody, Olga. «Oran R. Young. Systems of Political Science. New Jersey : Prentice Hall, 1968. (Foundation of Modern Political Sciences Series)». Foro Internacional 12, no. 3 (enero 1, 1972): 400–401. Accedido noviembre 21, 2024. https://forointernacional.colmex.mx/index.php/fi/article/view/572.