APA (7th ed.) Citation

Allen, G. N. (1960). Undercover teacher .. ([1st ed.].). Doubleday.

Chicago Style (17th ed.) Citation

Allen, George N. Undercover Teacher .. [1st ed.]. Garden City, N.Y.: Doubleday, 1960.

MLA (9th ed.) Citation

Allen, George N. Undercover Teacher .. [1st ed.]. Doubleday, 1960.