APA (7th ed.) Citation

De Bono, E. (2000). The de Bono code book. Penguin Books.

Chicago Style (17th ed.) Citation

De Bono, Edward. The De Bono Code Book. New York: Penguin Books, 2000.

MLA (8th ed.) Citation

De Bono, Edward. The De Bono Code Book. Penguin Books, 2000.