APA (7th ed.) Citation

Small, J. (1946). pH and plants: An introduction for beginners. D. Van Nostrand company, inc..

Chicago Style (17th ed.) Citation

Small, James. PH and Plants: An Introduction for Beginners. New York: D. Van Nostrand company, inc., 1946.

MLA (9th ed.) Citation

Small, James. PH and Plants: An Introduction for Beginners. D. Van Nostrand company, inc., 1946.