APA (7th ed.) Citation

Wagner, C. P. (1991). Engaging the enemy: How to fight and defeat territorial spirits (North American ed.). Regal Books.

Chicago Style (17th ed.) Citation

Wagner, C. Peter. Engaging the Enemy: How to Fight and Defeat Territorial Spirits. North American ed. Ventura, Calif.: Regal Books, 1991.

MLA (9th ed.) Citation

Wagner, C. Peter. Engaging the Enemy: How to Fight and Defeat Territorial Spirits. North American ed. Regal Books, 1991.