APA (7th ed.) Citation

Williams, J. A., & Williams, J. A. (1961). Islam. G. Braziller.

Chicago Style (17th ed.) Citation

Williams, John Alden, and John A. Williams. Islam. New York: G. Braziller, 1961.

MLA (9th ed.) Citation

Williams, John Alden, and John A. Williams. Islam. G. Braziller, 1961.