APA (7th ed.) Citation

De Bono, E. (1992). Six thinking hats: Short course. Advanced Practical Thinking Training.

Chicago Style (17th ed.) Citation

De Bono, Edward. Six Thinking Hats: Short Course. Iowa: Advanced Practical Thinking Training, 1992.

MLA (8th ed.) Citation

De Bono, Edward. Six Thinking Hats: Short Course. Advanced Practical Thinking Training, 1992.

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