APA (7th ed.) Citation

De Bono, E. (1985). Six thinking hats. Penguin.

Chicago Style (17th ed.) Citation

De Bono, Edward. Six Thinking Hats. London: Penguin, 1985.

MLA (8th ed.) Citation

De Bono, Edward. Six Thinking Hats. Penguin, 1985.

Warning: These citations may not always be 100% accurate.