APA (7th ed.) Citation

Smith, E. A. (1971). What the religious revolutionaries are saying. Fortress Press.

Chicago Style (17th ed.) Citation

Smith, Elwyn A. What the Religious Revolutionaries Are Saying. Philadelphia: Fortress Press, 1971.

MLA (9th ed.) Citation

Smith, Elwyn A. What the Religious Revolutionaries Are Saying. Fortress Press, 1971.