Locker, K. O. (2007). Business Communication (3rd.). Mcgraw Hill.
Dyfyniad Arddull ChicagoLocker, Kitty O. Business Communication. 3rd. New Delhi: Mcgraw Hill, 2007.
Dyfyniad MLALocker, Kitty O. Business Communication. 3rd. Mcgraw Hill, 2007.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.