APA (7th ed.) Citation

Foster, H. H., Wetzel, W. A., & Lawrence, B. (1939). High school supervision. T. Nelson and sons.

Chicago Style (17th ed.) Citation

Foster, Herbert Hamilton, William Achenbachk Wetzel, and Bertha Lawrence. High School Supervision. New York: T. Nelson and sons, 1939.

MLA (9th ed.) Citation

Foster, Herbert Hamilton, et al. High School Supervision. T. Nelson and sons, 1939.