Cita APA (7th ed.)
Drucker, P., Heizer, R. F., & Squier, R. J. (1959). Excavations at la Venta, Tabasco, 1955. Government Printing Office.
Cita Chicago (17th ed.)
Drucker, Philip, Robert F. Heizer, i Robert J. Squier. Excavations at La Venta, Tabasco, 1955. Washington: Government Printing Office, 1959.
Cita MLA (9th ed.)
Drucker, Philip, et al. Excavations at La Venta, Tabasco, 1955. Government Printing Office, 1959.
Atenció: Aquestes cites poden no estar 100% correctes.