APA (7th ed.) Citation

De Bono, E. (1972). PO, beyond yes & no (Rev. ed.). Penguin.

Chicago Style (17th ed.) Citation

De Bono, Edward. PO, Beyond Yes & No. Rev. ed. Harmondsworth, Middlesex, Eng: Penguin, 1972.

MLA (8th ed.) Citation

De Bono, Edward. PO, Beyond Yes & No. Rev. ed. Penguin, 1972.