APA (7th ed.) Citation

De Bono. (2005). The six value medals. Vermilion.

Chicago Style (17th ed.) Citation

De Bono. The Six Value Medals. London: Vermilion, 2005.

MLA (8th ed.) Citation

De Bono. The Six Value Medals. Vermilion, 2005.

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