Cita APA (7a ed.)
Drucker, P., Heizer, R. F., & Squier, R. J. (1959). Excavations at la Venta, Tabasco, 1955. Government Printing Office.
Cita Chicago Style (17a ed.)
Drucker, Philip, Robert F. Heizer, y Robert J. Squier. Excavations at La Venta, Tabasco, 1955. Washington: Government Printing Office, 1959.
Cita MLA (9a ed.)
Drucker, Philip, et al. Excavations at La Venta, Tabasco, 1955. Government Printing Office, 1959.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.