APA (7th ed.) Citation

Oursler, F. (1950). Why I know there is a God ([1st ed.].). Doubleday.

Chicago Style (17th ed.) Citation

Oursler, Fulton. Why I Know There Is a God. [1st ed.]. Garden City, N. Y.: Doubleday, 1950.

MLA (9th ed.) Citation

Oursler, Fulton. Why I Know There Is a God. [1st ed.]. Doubleday, 1950.

Warning: These citations may not always be 100% accurate.