TY  - BOOK
AU  - Bono de Edward
TI  - Six Thinking Hats For Schools 
SN  - 1563120984
AV  - BF 441 .D4 1991 
PY  - 1991///
CY  - New Yolk 
PB  - Perfection Learning Corporation
KW  - Creative Thinking
KW  - Problem Solving
ER  -