Dyfyniad APA

Dugger, J. (2003). Business letters for busy people (3rd ed.). Jaico.

Dyfyniad Arddull Chicago

Dugger, Jim. Business Letters for Busy People. 3rd ed. Mumbai: Jaico, 2003.

Dyfyniad MLA

Dugger, Jim. Business Letters for Busy People. 3rd ed. Jaico, 2003.

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