Παραπομπή APA

Roll of Ipsden, E. R. (1975). A history of economic thought (4th ed., revised and enlarged.). Oxford University Press.

Παραπομπή Chicago Style

Roll of Ipsden, Eric Roll. A History of Economic Thought. 4th ed., revised and enlarged. Calcutta: Oxford University Press, 1975.

Παραπομπή MLA

Roll of Ipsden, Eric Roll. A History of Economic Thought. 4th ed., revised and enlarged. Oxford University Press, 1975.