APA (7e ed.) Bronvermelding

De Bono, E. (1999). Simplicity. Penguin Books.

Chicago (17e ed.) Bronvermelding

De Bono, Edward. Simplicity. London: Penguin Books, 1999.

MLA (9e ed.) Bronvermelding

De Bono, Edward. Simplicity. Penguin Books, 1999.