एपीए उद्धरण

(2014). UPSC-ES Engineering services examination: Objective solved papers:civil engineering papers I & II 2000-2013. C L Media.

शिकागो स्टाइल उद्धरण

UPSC-ES Engineering Services Examination: Objective Solved Papers:civil Engineering Papers I & II 2000-2013. Roorkhee: C L Media, 2014.

एमएलए उद्धरण

UPSC-ES Engineering Services Examination: Objective Solved Papers:civil Engineering Papers I & II 2000-2013. C L Media, 2014.