एपीए उद्धरण

 Thornton, A. (2004).  Variation risk management: Focusing quality improvements in product development and production.  Wiley.

शिकागो स्टाइल उद्धरण

 Thornton, Anna.  Variation Risk Management: Focusing Quality Improvements in Product Development and Production.  Wiley, 2004.

एमएलए उद्धरण

 Thornton, Anna.  Variation Risk Management: Focusing Quality Improvements in Product Development and Production.  Wiley, 2004.