Dyfyniad APA

Thill, J. V., & Bovee, C. L. (2017). Excellence in Business Communication (12th ed.). Pearson.

Dyfyniad Arddull Chicago

Thill, John V., and Courtland L. Bovee. Excellence in Business Communication. 12th ed. New York.: Pearson, 2017.

Dyfyniad MLA

Thill, John V., and Courtland L. Bovee. Excellence in Business Communication. 12th ed. Pearson, 2017.

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