De Bono, E. (1993). Sur/petition: Creating value monopolies when everyone else is merely competing. HarperBusiness, Profile Books.
Chicago-referens (17:e uppl.)De Bono, Edward. Sur/petition: Creating Value Monopolies When Everyone Else Is Merely Competing. New York, NY : London: HarperBusiness, Profile Books, 1993.
MLA-referens (8:e uppl.)De Bono, Edward. Sur/petition: Creating Value Monopolies When Everyone Else Is Merely Competing. HarperBusiness, Profile Books, 1993.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.