APA (7th ed.) Citation

Johnson, W. H., & Moffett, H. Y. (1937). Practice leaves "A". Harper & Brothers Publishers.

Chicago Style (17th ed.) Citation

Johnson, Willoughby H., and H. Y. Moffett. Practice Leaves "A". New York ; London: Harper & Brothers Publishers, 1937.

MLA (8th ed.) Citation

Johnson, Willoughby H., and H. Y. Moffett. Practice Leaves "A". Harper & Brothers Publishers, 1937.