Sharma, A., Bhagat, M. K., & Guha, A. (2019). General studies for civil services preliminary examination GS Paper II. McGraw Hill Education.
استشهاد بنمط شيكاغوSharma, Arun, Madhukar Kumar Bhagat, و Abhijit Guha. General Studies for Civil Services Preliminary Examination GS Paper II. Chennai: McGraw Hill Education, 2019.
MLA استشهادSharma, Arun, et al. General Studies for Civil Services Preliminary Examination GS Paper II. McGraw Hill Education, 2019.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.