TY  - BOOK
AU  - De Bono,Edward
TI  - Six thinking hats
SN  - 0316178314 (pbk.)
AV  - BF441 .D385 1952
U1  - 153.4/2 21
PY  - 1952///
CY  - Boston
PB  - Back Bay Books
KW  - Thought and thinking
ER  -