APA (7th ed.) Citation

Darrah, W. C. (1960). Principles of paleobotany (Second edition.). Ronald Press Compaby.

Chicago Style (17th ed.) Citation

Darrah, William Culp. Principles of Paleobotany. Second edition. New York: Ronald Press Compaby, 1960.

MLA (9th ed.) Citation

Darrah, William Culp. Principles of Paleobotany. Second edition. Ronald Press Compaby, 1960.

Warning: These citations may not always be 100% accurate.