Bly, R. W. (2003). Fool-proof marketing: 15 winning methods for selling ANY product or service in ANY economy. John Wiley.
Lua i Stíl Chicago (17ú heag.)Bly, Robert W. Fool-proof Marketing: 15 Winning Methods for Selling ANY Product or Service in ANY Economy. New York: John Wiley, 2003.
Lua MLA (8ú heag.)Bly, Robert W. Fool-proof Marketing: 15 Winning Methods for Selling ANY Product or Service in ANY Economy. John Wiley, 2003.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.