Duening,Thomas N, & Ivancevich,John M. (2003). Management: Principles and guidlines. Biztantra.
Dyfyniad Arddull ChicagoDuening,Thomas N, and Ivancevich,John M. Management: Principles and Guidlines. New Delhi: Biztantra, 2003.
Dyfyniad MLADuening,Thomas N, and Ivancevich,John M. Management: Principles and Guidlines. Biztantra, 2003.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.