(1999). UPSC (IES) enginering services examination papers solved and unsolved: Mechanical Engineering. G.K. Publishers Pvt Ltd.
Chicago-tyylinen lähdeviittausUPSC (IES) Enginering Services Examination Papers Solved and Unsolved: Mechanical Engineering. Jabalpur: G.K. Publishers Pvt Ltd, 1999.
MLA-viiteUPSC (IES) Enginering Services Examination Papers Solved and Unsolved: Mechanical Engineering. G.K. Publishers Pvt Ltd, 1999.
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