APA Style
Bono, Edward de. ().
Six thinking hats (Revised and updated).
:
.
Chicago Style
Bono, Edward de.
Six thinking hats.
Revised and updated
:
,
.
Text.
MLA Style
Bono, Edward de.
Six thinking hats.
Revised and updated
:
,
.
Text.
Turabian Style
Bono, Edward de.
Six thinking hats.
Revised and updated
:
,
.
Print.