एपीए उद्धरण

(2009). U.P.S.C (I.E.S.) engineering services examination solved papers: Mechanical engineering. G.K. Publishers.

शिकागो स्टाइल उद्धरण

U.P.S.C (I.E.S.) Engineering Services Examination Solved Papers: Mechanical Engineering. Noida: G.K. Publishers, 2009.

एमएलए उद्धरण

U.P.S.C (I.E.S.) Engineering Services Examination Solved Papers: Mechanical Engineering. G.K. Publishers, 2009.