Dyfyniad APA

Sloman, J., & Garratt, D. (2010). Essentials of economics. New York: Prentice Hall/ Pearson.

Dyfyniad Arddull Chicago

Sloman, John, và Dean Garratt. Essentials of Economics. New York: Prentice Hall/ Pearson, 2010.

Dyfyniad MLA

Sloman, John, và Dean Garratt. Essentials of Economics. New York: Prentice Hall/ Pearson, 2010.

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