Six thinking hats /
Bono, Edward De.
Six thinking hats / By Edward De Bono. - 1st ed. - New York : Little Brown and Company , 1999. - xiii,173p. ; 20.7 cm
0316178314
General Management
The black hat
The yellow hat
The green hat
374.22 / BONE
Six thinking hats / By Edward De Bono. - 1st ed. - New York : Little Brown and Company , 1999. - xiii,173p. ; 20.7 cm
0316178314
General Management
The black hat
The yellow hat
The green hat
374.22 / BONE
