APA

Barber W., . (1967). A history of economic thought. Estados Unidos: Penguin Books.

Chicago

Barber William, . 1967. A history of economic thought. Estados Unidos: Penguin Books.

Harvard

Barber W., . (1967). A history of economic thought. Estados Unidos: Penguin Books.

MLA

Barber William, . A history of economic thought. Estados Unidos: Penguin Books. 1967.