APA Citation

De Bono, E. 1. (1985). Six thinking hats. England: Penguin Books.

Chicago Style Citation

De Bono, Edward 1933-. Six Thinking Hats. England: Penguin Books, 1985.

MLA Citation

De Bono, Edward 1933-. Six Thinking Hats. England: Penguin Books, 1985.

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