(1999). UPSC (IES) Engineering Services Examination Papers, Solved and Unsolved: Civil Engineering. G.K.
Chicago-stil citatUPSC (IES) Engineering Services Examination Papers, Solved and Unsolved: Civil Engineering. Jabalpur: G.K, 1999.
MLA-referensUPSC (IES) Engineering Services Examination Papers, Solved and Unsolved: Civil Engineering. G.K, 1999.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.