1.
Pérez León R. Gerardo L. Munck y Richard Snyder. Passion, craft and method in comparative politics. Baltimore, Maryland : The Johns hopkins University Press, 2007. 773 p. ES [Internet]. 1sep.2008 [citado 6dic.2019];26(78):741-6. Available from: https://estudiossociologicos.colmex.mx/index.php/es/article/view/320