एपीए उद्धरण

Hitchins, D. K. (2007). Systems engineering: A 21st century systems methodology. Chichester, West Sussex, England,Hoboken, NJ: John Wiley.

शिकागो स्टाइल उद्धरण

Hitchins, Derek K. Systems Engineering: A 21st Century Systems Methodology. Chichester, West Sussex, England,Hoboken, NJ: John Wiley, 2007.

एमएलए उद्धरण

Hitchins, Derek K. Systems Engineering: A 21st Century Systems Methodology. Chichester, West Sussex, England,Hoboken, NJ: John Wiley, 2007.