APA

(1999). Journal of Political Economy - Vol.107 No.2. Estados Unidos: University of Chicago.

Chicago

1999. Journal of Political Economy - Vol.107 No.2. Estados Unidos: University of Chicago.

Harvard

(1999). Journal of Political Economy - Vol.107 No.2. Estados Unidos: University of Chicago.

MLA

Journal of Political Economy - Vol.107 No.2. Estados Unidos: University of Chicago. 1999.