APA (7th ed.) Citation

Drucker, P., Heizer, R. F., & Squier, R. J. (1959). Excavations at La Venta, Tabasco, 1955. United States Government Printing Office.

Chicago Style (17th ed.) Citation

Drucker, Philip, Robert F. Heizer, and Robert J. Squier. Excavations at La Venta, Tabasco, 1955. Washington: United States Government Printing Office, 1959.

MLA (9th ed.) Citation

Drucker, Philip, et al. Excavations at La Venta, Tabasco, 1955. United States Government Printing Office, 1959.