APA (7th ed.) Citation

Gurganus, G. P. (1976). Guidelines for world evangelism. Biblical Research Press.

Chicago Style (17th ed.) Citation

Gurganus, George P. Guidelines for World Evangelism. Abilene, Tex.: Biblical Research Press, 1976.

MLA (9th ed.) Citation

Gurganus, George P. Guidelines for World Evangelism. Biblical Research Press, 1976.