HELLRIEGEL DON. (2002). MANAGEMENT: COMPETENCY BASED APPROACH (9TH.). THOMSON SOUTH-WESTERN.
Dyfyniad Arddull ChicagoHELLRIEGEL DON. MANAGEMENT: COMPETENCY BASED APPROACH. 9TH. AUSTRALIA: THOMSON SOUTH-WESTERN, 2002.
Dyfyniad MLAHELLRIEGEL DON. MANAGEMENT: COMPETENCY BASED APPROACH. 9TH. THOMSON SOUTH-WESTERN, 2002.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.