Zimmerman, Carle C. «Herbert R. Barringer, George I. Blanksten, Raymond W. Mack. Social Change in Developing Areas, A Reinterpretation of Evolutionary Theory». Revista Mexicana de Sociología 28, no. 3 (julio 1, 1966): 743–745. Accedido abril 27, 2025. http://132.248.234.93/index.php/rms/article/view/58649.