APA (7th ed.) Citation

De Bono. (1991). Handbook for the positive revolution. Penguin Books.

Chicago Style (17th ed.) Citation

De Bono. Handbook for the Positive Revolution. London: Penguin Books, 1991.

MLA (8th ed.) Citation

De Bono. Handbook for the Positive Revolution. Penguin Books, 1991.

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