Sharma, A. (2013). General studies 2013: Paper II for civil services preliminary examination. Tata McGraw-Hill.
Chicago-stil citatSharma, Arun...[et.al]. General Studies 2013: Paper II for Civil Services Preliminary Examination. New Delhi: Tata McGraw-Hill, 2013.
MLA-referensSharma, Arun...[et.al]. General Studies 2013: Paper II for Civil Services Preliminary Examination. Tata McGraw-Hill, 2013.
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