APA (7th ed.) Citation

Howard, P. (1961). Frank Buchman's secret ([1st American ed.].). Doubleday.

Chicago Style (17th ed.) Citation

Howard, Peter. Frank Buchman's Secret. [1st American ed.]. Garden City, N. Y.: Doubleday, 1961.

MLA (9th ed.) Citation

Howard, Peter. Frank Buchman's Secret. [1st American ed.]. Doubleday, 1961.