Cita APA (7a ed.)
Fama, E. F., & Laffer, A. B. (Sep72). The Number of Firms and Competition. American Economic Review, 62(4), 670-675.
Cita Chicago Style (17a ed.)
Fama, Eugene F., y Arthur B. Laffer. "The Number of Firms and Competition." American Economic Review 62, no. 4 (Sep72): 670-675.
Cita MLA (9a ed.)
Fama, Eugene F., y Arthur B. Laffer. "The Number of Firms and Competition." American Economic Review, vol. 62, no. 4, Sep72, pp. 670-675.
Precaución: Estas citas no son 100% exactas.