TY  - BOOK
AU  - De Bono,Edward
TI  - Six thinking hats
SN  - 0140296662 (pbk) :
U1  - 160 21
PY  - 1999///
CY  - London
PB  - Penguin
KW  - Creative thinking
KW  - Problem solving
N1  - Previous ed.: Harmondsworth: Viking, 1986
ER  -