De Bono, E. W. (1999). Six Thinking Hats. Tata McGraw - Hill.
Chicago Style (17th ed.) CitationDe Bono, Ed Ward. Six Thinking Hats. New Delhi: Tata McGraw - Hill, 1999.
MLA (9th ed.) CitationDe Bono, Ed Ward. Six Thinking Hats. Tata McGraw - Hill, 1999.
Warning: These citations may not always be 100% accurate.