एपीए उद्धरण

 Bell, G. (2002).  The competitive enterprise: 10 principles of business excellence for increased market share.  McGraw-Hill Irwin.

शिकागो स्टाइल उद्धरण

 Bell, Geoffrey.  The Competitive Enterprise: 10 Principles of Business Excellence for Increased Market Share.  McGraw-Hill Irwin, 2002.

एमएलए उद्धरण

 Bell, Geoffrey.  The Competitive Enterprise: 10 Principles of Business Excellence for Increased Market Share.  McGraw-Hill Irwin, 2002.