APA (7th ed.) Citation

Irwin, W. A. (1952). The Old Testament: Keystone of human culture. Schuman.

Chicago Style (17th ed.) Citation

Irwin, William A. The Old Testament: Keystone of Human Culture. New York, NY: Schuman, 1952.

MLA (9th ed.) Citation

Irwin, William A. The Old Testament: Keystone of Human Culture. Schuman, 1952.