APA (7th ed.) Citation

O'Brien, J. A. (1937). Cardinal Newman, Scholar of Oxford. New York.

Chicago Style (17th ed.) Citation

O'Brien, John A. Cardinal Newman, Scholar of Oxford. New York, 1937.

MLA (8th ed.) Citation

O'Brien, John A. Cardinal Newman, Scholar of Oxford. New York, 1937.

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