Lua APA (7ú heag.)
Burkan , W. C. (1996). Wide angel vision: Beat your competition by focusing on fringe competitors, lost customers, and rogue employees. John Wiley & Sons.
Lua i Stíl Chicago (17ú heag.)
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.
Lua MLA (9ú heag.)
Burkan , Wayne C. Wide Angel Vision: Beat Your Competition by Focusing on Fringe Competitors, Lost Customers, and Rogue Employees. John Wiley & Sons, 1996.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.