एपीए उद्धरण

John,, K. (2009). Engineering graphics for degree. PHI.

शिकागो स्टाइल उद्धरण

John,, K.C. Engineering Graphics for Degree. New Delhi: PHI, 2009.

एमएलए उद्धरण

John,, K.C. Engineering Graphics for Degree. PHI, 2009.