Dyfyniad APA

Hornby, W. (2001). Business econmics (2nd ed.). Pearson Education.

Dyfyniad Arddull Chicago

Hornby, Win. Business Econmics. 2nd ed. Harlow,England: Pearson Education, 2001.

Dyfyniad MLA

Hornby, Win. Business Econmics. 2nd ed. Pearson Education, 2001.

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