Sharma, A. (2013). General studies 2013: Paper II for civil services preliminary examination. Tata McGraw-Hill.
استشهاد بنمط شيكاغوSharma, Arun...[et.al]. General Studies 2013: Paper II for Civil Services Preliminary Examination. New Delhi: Tata McGraw-Hill, 2013.
MLA استشهادSharma, Arun...[et.al]. General Studies 2013: Paper II for Civil Services Preliminary Examination. Tata McGraw-Hill, 2013.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.