Παραπομπή APA

(1999). UPSC (IES) Engineering Services Examination Papers, Solved and Unsolved: Civil Engineering. G.K.

Παραπομπή Chicago Style

UPSC (IES) Engineering Services Examination Papers, Solved and Unsolved: Civil Engineering. Jabalpur: G.K, 1999.

Παραπομπή MLA

UPSC (IES) Engineering Services Examination Papers, Solved and Unsolved: Civil Engineering. G.K, 1999.

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