APA (7th ed.) Citation

Hardon, J. A. (1979). Theology of prayer. St. Paul Editions.

Chicago Style (17th ed.) Citation

Hardon, John A. Theology of Prayer. Boston: St. Paul Editions, 1979.

MLA (8th ed.) Citation

Hardon, John A. Theology of Prayer. St. Paul Editions, 1979.

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