Cita APA (7a ed.)
Heizer, R. F., & Graham, J. A. (1971). Contributions of the University of California Archaeological Research Facility: Observations on the Emergence of Civilization in Mesoamerica : Number 11, April 1971. University of California, Department of Anthropology.
Cita estilo Chicago (17a ed.)
Heizer, Robert F., y John A. Graham. Contributions of the University of California Archaeological Research Facility: Observations on the Emergence of Civilization in Mesoamerica : Number 11, April 1971. Berkeley, EUA: University of California, Department of Anthropology, 1971.
Cita MLA (9a ed.)
Heizer, Robert F., y John A. Graham. Contributions of the University of California Archaeological Research Facility: Observations on the Emergence of Civilization in Mesoamerica : Number 11, April 1971. University of California, Department of Anthropology, 1971.
Precaución: Estas citas no son 100% exactas.