APA (7th ed.) Citation

Newport, J. P. (1984). What is Christian doctrine? Layman's library of Christian doctrine.

Chicago Style (17th ed.) Citation

Newport, John P. "What Is Christian Doctrine?" Layman's Library of Christian Doctrine 1984.

MLA (8th ed.) Citation

Newport, John P. "What Is Christian Doctrine?" Layman's Library of Christian Doctrine, 1984.

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