APA (7th ed.) Citation
Bernal, I., Heyden, D., & Horcasitas, F. (1969). The Olmec world. University of California Press.
Chicago Style (17th ed.) Citation
Bernal, Ignacio, Doris Heyden, and Fernando Horcasitas. The Olmec World. Berkeley, Los Angeles: University of California Press, 1969.
MLA (9th ed.) Citation
Bernal, Ignacio, et al. The Olmec World. University of California Press, 1969.
Warning: These citations may not always be 100% accurate.