APA (7th ed.) Citation

Cross, G. (1918). What is Christianity?: A study of rival interpretations. The University of Chicago press.

Chicago Style (17th ed.) Citation

Cross, George. What Is Christianity?: A Study of Rival Interpretations. Chicago, Ill.: The University of Chicago press, 1918.

MLA (9th ed.) Citation

Cross, George. What Is Christianity?: A Study of Rival Interpretations. The University of Chicago press, 1918.

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