Cita APA (7a ed.)

Pfefferkorn, I. (1989). Sonora: A Description of the Province. University of Arizona Press.

Cita Chicago Style (17a ed.)

Pfefferkorn, Ignaz. Sonora: A Description of the Province. Tucson: University of Arizona Press, 1989.

Cita MLA (8a ed.)

Pfefferkorn, Ignaz. Sonora: A Description of the Province. University of Arizona Press, 1989.