APA (7th ed.) Citation

Smith, A. (1994). An inquiry into nature and causes of the wealth of nations (2nd ed., 5th printing.). Encyclopaedia Britannica, Inc..

Chicago Style (17th ed.) Citation

Smith, Adam. An Inquiry into Nature and Causes of the Wealth of Nations. 2nd ed., 5th printing. Chicago, Ill., [etc.]: Encyclopaedia Britannica, Inc., 1994.

MLA (9th ed.) Citation

Smith, Adam. An Inquiry into Nature and Causes of the Wealth of Nations. 2nd ed., 5th printing. Encyclopaedia Britannica, Inc., 1994.