Burkan, W. C. (1996). Wide-Angle vision: Beat your competition by tocusing on fringe competitors, lost customers, and rogue employees. Wiley.
Chicago-Zitierstil (17. Ausg.)Burkan, Wayne C. Wide-Angle Vision: Beat Your Competition by Tocusing on Fringe Competitors, Lost Customers, and Rogue Employees. New York: Wiley, 1996.
MLA-Zitierstil (9. Ausg.)Burkan, Wayne C. Wide-Angle Vision: Beat Your Competition by Tocusing on Fringe Competitors, Lost Customers, and Rogue Employees. Wiley, 1996.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.