Citazione Stile APA (7a Edizione)

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

Citazione stile Chigago Style (17a edizione)

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

Citatione MLA (9a ed.)

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