APA (7th ed.) Citation

Turner, R. (1987). Thinkers of the twentieth century (2nd ed.). St. James Press.

Chicago Style (17th ed.) Citation

Turner, Roland. Thinkers of the Twentieth Century. 2nd ed. Chicago: St. James Press, 1987.

MLA (9th ed.) Citation

Turner, Roland. Thinkers of the Twentieth Century. 2nd ed. St. James Press, 1987.