APA (7th ed.) Citation

Liddle, R. A. (1946). The geology of Venezuela and Trinidad (2d ed., rev. and enl.). Paleontological Research Institution.

Chicago Style (17th ed.) Citation

Liddle, Ralph Alexander. The Geology of Venezuela and Trinidad. 2d ed., rev. and enl. Ithaca, N. Y: Paleontological Research Institution, 1946.

MLA (9th ed.) Citation

Liddle, Ralph Alexander. The Geology of Venezuela and Trinidad. 2d ed., rev. and enl. Paleontological Research Institution, 1946.