APA-viite (7. p.)
Burkan , W. C. (1996). Wide angel vision: Beat your competition by focusing on fringe competitors, lost customers, and rogue employees. John Wiley & Sons.
Chicago-viite (17. p.)
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-viite (9. p.)
Burkan , Wayne C. Wide Angel Vision: Beat Your Competition by Focusing on Fringe Competitors, Lost Customers, and Rogue Employees. John Wiley & Sons, 1996.
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