APA (7th ed.) Citation

Hackman, G. G. (1957). Religion in modern life. Macmillan.

Chicago Style (17th ed.) Citation

Hackman, George Gottlob. Religion in Modern Life. New York: Macmillan, 1957.

MLA (9th ed.) Citation

Hackman, George Gottlob. Religion in Modern Life. Macmillan, 1957.