एपीए उद्धरण

(1999). UPSC (IES) enginering services examination papers solved and unsolved: Mechanical Engineering. G.K. Publishers Pvt Ltd.

शिकागो स्टाइल उद्धरण

UPSC (IES) Enginering Services Examination Papers Solved and Unsolved: Mechanical Engineering. Jabalpur: G.K. Publishers Pvt Ltd, 1999.

एमएलए उद्धरण

UPSC (IES) Enginering Services Examination Papers Solved and Unsolved: Mechanical Engineering. G.K. Publishers Pvt Ltd, 1999.