Citazione APA

De Bono, E. (1977). Word Power: An illustrated dictionary of vital words. Penguin Books.

Stile di citazione Chicago

De Bono, Edward. Word Power: An Illustrated Dictionary of Vital Words. England: Penguin Books, 1977.

Citazione MLA

De Bono, Edward. Word Power: An Illustrated Dictionary of Vital Words. Penguin Books, 1977.