De Bono, E. (1985). Six thinking hats. London: Penguin Books.
Chicago Style CitationDe Bono, Edward. Six Thinking Hats. London: Penguin Books, 1985.
MLA CitationDe Bono, Edward. Six Thinking Hats. London: Penguin Books, 1985.
Warning: These citations may not always be 100% accurate.