Cita APA (7a ed.)
Lewis, O., & Beltrán, A. (1964). Pedro Martínez: A mexican peasant and his family (First printing.). Random House.
Cita Chicago Style (17a ed.)
Lewis, Oscar, y Alberto Beltrán. Pedro Martínez: A Mexican Peasant and His Family. First printing. New York: Random House, 1964.
Cita MLA (9a ed.)
Lewis, Oscar, y Alberto Beltrán. Pedro Martínez: A Mexican Peasant and His Family. First printing. Random House, 1964.
Precaución: Estas citas no son 100% exactas.