APA (7th ed.) Citation

Tillich, P. (1968). A history of Christian thought ([rev. 2. ed.].). Harper & Row.

Chicago Style (17th ed.) Citation

Tillich, Paul. A History of Christian Thought. [rev. 2. ed.]. New York [u.a.]: Harper & Row, 1968.

MLA (9th ed.) Citation

Tillich, Paul. A History of Christian Thought. [rev. 2. ed.]. Harper & Row, 1968.