Dyfyniad APA

Sloman, J. (1994). Economics: Workbook. New York: Harvester wheatsheaf and Prentice-Hall.

Dyfyniad Arddull Chicago

Sloman, Jonh. Economics: Workbook. New York: Harvester wheatsheaf and Prentice-Hall, 1994.

Dyfyniad MLA

Sloman, Jonh. Economics: Workbook. New York: Harvester wheatsheaf and Prentice-Hall, 1994.

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