APA (7th ed.) Citation

Newman, J. H. (2011). An Essay on the Development of Christian Doctrine. Project Gutenberg.

Chicago Style (17th ed.) Citation

Newman, John Henry. An Essay on the Development of Christian Doctrine. Project Gutenberg, 2011.

MLA (9th ed.) Citation

Newman, John Henry. An Essay on the Development of Christian Doctrine. Project Gutenberg, 2011.

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