(2012). UPSC IES Engineering service examination: Civil engineering.Solved papers. Koncept.
Chicago-стиль цитированияUPSC IES Engineering Service Examination: Civil Engineering.Solved Papers. Dehradun: Koncept, 2012.
MLA-цитированиеUPSC IES Engineering Service Examination: Civil Engineering.Solved Papers. Koncept, 2012.
Предупреждение: эти цитированмия не могут быть всегда правильны на 100%.