APA (7th ed.) Citation

Dwyer, J. C. (1985). Church history: 20 centuries of Catholic Christianity. Paulist Press.

Chicago Style (17th ed.) Citation

Dwyer, John C. Church History: 20 Centuries of Catholic Christianity. New York u.a: Paulist Press, 1985.

MLA (9th ed.) Citation

Dwyer, John C. Church History: 20 Centuries of Catholic Christianity. Paulist Press, 1985.