APA (7th ed.) Citation

Barber, W. J. (1967). A history of economic thought. Penguin.

Chicago Style (17th ed.) Citation

Barber, William J. A History of Economic Thought. London: Penguin, 1967.

MLA (8th ed.) Citation

Barber, William J. A History of Economic Thought. Penguin, 1967.

Warning: These citations may not always be 100% accurate.