APA (7th ed.) Citation

Barker, W. P. (1969). Who's who in church history. Revell.

Chicago Style (17th ed.) Citation

Barker, William P. Who's Who in Church History. Old Tappan, NJ: Revell, 1969.

MLA (9th ed.) Citation

Barker, William P. Who's Who in Church History. Revell, 1969.

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