Dyfyniad APA

Ober, S. (2001). Contemporary business communication (4th edition.). Boston: Houghton Mifflin Co.

Dyfyniad Arddull Chicago

Ober, Scot. Contemporary Business Communication. 4th edition. Boston: Houghton Mifflin Co, 2001.

Dyfyniad MLA

Ober, Scot. Contemporary Business Communication. 4th edition. Boston: Houghton Mifflin Co, 2001.

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