Bono Edward de
Six thinking hats - London Penguin Books 1985 - 177p
0-14--029666-2
Creative thinking.
Problem solving.
Self help book
153.42 / BON/S
Six thinking hats - London Penguin Books 1985 - 177p
0-14--029666-2
Creative thinking.
Problem solving.
Self help book
153.42 / BON/S