Dyfyniad APA

Smith, A., & Skinner, A. (1999). The wealth of nations: Books 1-3. Penguin Books.

Dyfyniad Arddull Chicago

Smith, Adam, and Andrew Skinner. The Wealth of Nations: Books 1-3. London: Penguin Books, 1999.

Dyfyniad MLA

Smith, Adam, and Andrew Skinner. The Wealth of Nations: Books 1-3. Penguin Books, 1999.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.