APA (7th ed.) Citation

Smith, A. (1970). The wealth of nations: Books I-III. Penguin.

Chicago Style (17th ed.) Citation

Smith, Adam. The Wealth of Nations: Books I-III. London: Penguin, 1970.

MLA (9th ed.) Citation

Smith, Adam. The Wealth of Nations: Books I-III. Penguin, 1970.

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