Six Thinking Hats

Geahča maid

• SIX THINKING HATS
  Dahkki: BONO EDWARD DE
  Almmustuhtton: (1992)
• Six Thinking Hats
  Dahkki: Bono, Edward De
  Almmustuhtton: (2000)
• Six Thinking Hats
  Dahkki: Bono, Edward de
  Almmustuhtton: (1999)
• Six Thinking hats
  Dahkki: BonoEdward De
  Almmustuhtton: (1985)
• Six thinking hats
  Dahkki: De Bono, Edward
  Almmustuhtton: (1999)