APA (7th ed.) Citation

Swingle, D. B. (1942). Plant life: A textbook of botany (2d ed.). D. Van Nostrand company, inc..

Chicago Style (17th ed.) Citation

Swingle, Deane B. Plant Life: A Textbook of Botany. 2d ed. New York: D. Van Nostrand company, inc., 1942.

MLA (9th ed.) Citation

Swingle, Deane B. Plant Life: A Textbook of Botany. 2d ed. D. Van Nostrand company, inc., 1942.