Darrah, W. C. 1., & Darrah, W. C. 1. (1960). Principles of paleobotany (2. edition --.). New York, New York: Ronald Press.
Chicago Style CitationDarrah, William Culp 1909-, and William Culp 1909- Darrah. Principles of Paleobotany. 2. edition --. New York, New York: Ronald Press, 1960.
MLA CitationDarrah, William Culp 1909-, and William Culp 1909- Darrah. Principles of Paleobotany. 2. edition --. New York, New York: Ronald Press, 1960.
Warning: These citations may not always be 100% accurate.