Dyfyniad APA

Schiller, B. R. (2000). economy today (8th ed.). McGraw-Hill.

Dyfyniad Arddull Chicago

Schiller, Bradley R. Economy Today. 8th ed. Boston: McGraw-Hill, 2000.

Dyfyniad MLA

Schiller, Bradley R. Economy Today. 8th ed. McGraw-Hill, 2000.

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