APA (7th ed.) Citation

Darrah, W. C. (1960). Principles of paleobotany (2d ed.). Ronald Press Co.

Chicago Style (17th ed.) Citation

Darrah, William C. Principles of Paleobotany. 2d ed. New York: Ronald Press Co, 1960.

MLA (9th ed.) Citation

Darrah, William C. Principles of Paleobotany. 2d ed. Ronald Press Co, 1960.