APA (7th ed.) Citation

Wilbur, E. M. (1947). A history of Unitarianism A history of Unitarianism.

Chicago Style (17th ed.) Citation

Wilbur, Earl Morse. "A History of Unitarianism." A History of Unitarianism 1947.

MLA (8th ed.) Citation

Wilbur, Earl Morse. "A History of Unitarianism." A History of Unitarianism, 1947.

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