APA (7th ed.) Citation

Lay-Mazo, R. C., Lacaba, J. F., & Lopez-Portillo y Pachero, J. (1981). Quetzalcoatl. University of the Philippine press.

Chicago Style (17th ed.) Citation

Lay-Mazo, Rodolfo Cordon, Jose F. Lacaba, and Jose Lopez-Portillo y Pachero. Quetzalcoatl. Quezon City: University of the Philippine press, 1981.

MLA (9th ed.) Citation

Lay-Mazo, Rodolfo Cordon, et al. Quetzalcoatl. University of the Philippine press, 1981.