APA (7th ed.) Citation

De Bono, E. (1977). Wordpower: An illustarted dictionary of vital words. Penguin Books.

Chicago Style (17th ed.) Citation

De Bono, Edward. Wordpower: An Illustarted Dictionary of Vital Words. Middlesex: Penguin Books, 1977.

MLA (8th ed.) Citation

De Bono, Edward. Wordpower: An Illustarted Dictionary of Vital Words. Penguin Books, 1977.