APA (7th ed.) Citation

Sinclair, U. (1931). The Profits of Religion: An Essay in Economic Interpretation. By Upton Sinclair ((4. Printing.).). Vanguard Press.

Chicago Style (17th ed.) Citation

Sinclair, Upton. The Profits of Religion: An Essay in Economic Interpretation. By Upton Sinclair. (4. Printing.). New York: Vanguard Press, 1931.

MLA (9th ed.) Citation

Sinclair, Upton. The Profits of Religion: An Essay in Economic Interpretation. By Upton Sinclair. (4. Printing.). Vanguard Press, 1931.