Cita APA (7a ed.)

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

Cita Chicago Style (17a ed.)

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

Cita MLA (9a ed.)

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