APA-referens (7:e uppl.)
Burkan , W. C. (1996). Wide angel vision: Beat your competition by focusing on fringe competitors, lost customers, and rogue employees. John Wiley & Sons.
Chicago-referens (17:e uppl.)
Burkan , Wayne C. Wide Angel Vision: Beat Your Competition by Focusing on Fringe Competitors, Lost Customers, and Rogue Employees. New York: John Wiley & Sons, 1996.
MLA-referens (9:e uppl.)
Burkan , Wayne C. Wide Angel Vision: Beat Your Competition by Focusing on Fringe Competitors, Lost Customers, and Rogue Employees. John Wiley & Sons, 1996.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.