APA (7th ed.) Citation

Wilbur, E. M. (1946). Socianism and its antecedents. A history of unitarianism..

Chicago Style (17th ed.) Citation

Wilbur, Earl Morse. "Socianism and Its Antecedents." A History of Unitarianism. 1946.

MLA (8th ed.) Citation

Wilbur, Earl Morse. "Socianism and Its Antecedents." A History of Unitarianism., 1946.

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