APA (7th ed.) Citation

Neill, S., & Chadwick, O. (1990). A history of Christian missions (2. ed., reprinted.). Penguin Books.

Chicago Style (17th ed.) Citation

Neill, Stephen, and Owen Chadwick. A History of Christian Missions. 2. ed., reprinted. London: Penguin Books, 1990.

MLA (9th ed.) Citation

Neill, Stephen, and Owen Chadwick. A History of Christian Missions. 2. ed., reprinted. Penguin Books, 1990.