Six thinking hats /
Bono, Edward De.
Six thinking hats / - Revised and updated edition. - UK : Penguin, 2000. - xiii, 177 p. : 20 cm
9780241257531 (pbk.) :
Creative thinking.
Problem solving.
808 BON
Six thinking hats / - Revised and updated edition. - UK : Penguin, 2000. - xiii, 177 p. : 20 cm
9780241257531 (pbk.) :
Creative thinking.
Problem solving.
808 BON