Treece, M. (1994). Successful communication for business and the profession (6th ed.). Prentice Hall.
Dyfyniad Arddull ChicagoTreece, Malra. Successful Communication for Business and the Profession. 6th ed. New Jersey: Prentice Hall, 1994.
Dyfyniad MLATreece, Malra. Successful Communication for Business and the Profession. 6th ed. Prentice Hall, 1994.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.