Encyclopaedia on business management, Vol.1

Eitemau Tebyg

• Encyclopaedia on business management, Vol.5
  gan: Timpe, A Dale, Ed
  Cyhoeddwyd: (1992)
• Encyclopaedia on business management, Vol.6
  gan: Timpe, A Dale, Ed
  Cyhoeddwyd: (1992)
• Encyclopaedia on business management, Vol.2
  gan: Timpe, A Dale, Ed
  Cyhoeddwyd: (1992)
• Encyclopaedia on business management, Vol.3
  gan: Timpe, A Dale, Ed
  Cyhoeddwyd: (1992)
• Encyclopaedia on business management, Vol.7
  gan: Timpe, A Dale, Ed
  Cyhoeddwyd: (1992)