Cita APA (7a ed.)
Drucker, P., Heizer, R. F., & Squier, R. J. (1959). Excavations at La Venta, Tabasco, 1955. United States, Government Printing Office.
Cita estilo Chicago (17a ed.)
Drucker, Philip, Robert F. Heizer, y Robert J. Squier. Excavations at La Venta, Tabasco, 1955. Washington, EUA: United States, Government Printing Office, 1959.
Cita MLA (9a ed.)
Drucker, Philip, et al. Excavations at La Venta, Tabasco, 1955. United States, Government Printing Office, 1959.
אזהרה: ציטוטים אלה לעיתים לא מדויקים ב 100%.