Barber, W. J. (2009). A history of economic thought (1st Wesleyan ed.). Wesleyan University Press.
Čikaški stil citiranja (17. izdanje)Barber, William J. A History of Economic Thought. 1st Wesleyan ed. Middletown, Conn.: Wesleyan University Press, 2009.
MLA način citiranja (9. izdanje)Barber, William J. A History of Economic Thought. 1st Wesleyan ed. Wesleyan University Press, 2009.
Upozorenje: Ovi citati možda nisu uvijek 100% točni.