De Bono, E. (1993). Sur/petition: Creating value monopolies when everyone else is merely competing. HarperBusiness, Profile Books.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रDe Bono, Edward. Sur/petition: Creating Value Monopolies When Everyone Else Is Merely Competing. New York, NY : London: HarperBusiness, Profile Books, 1993.
एमएलए (8वां संस्करण) प्रशस्ति पत्रDe Bono, Edward. Sur/petition: Creating Value Monopolies When Everyone Else Is Merely Competing. HarperBusiness, Profile Books, 1993.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.