Singh, S. &. P. (2019). General studies for civil services preliminary examination 2019. McGraw Hill.
Chicago Style (17th ed.) CitationSingh, Surendra & Parmar. General Studies for Civil Services Preliminary Examination 2019. Chennai: McGraw Hill, 2019.
MLA (9th ed.) CitationSingh, Surendra & Parmar. General Studies for Civil Services Preliminary Examination 2019. McGraw Hill, 2019.
Warning: These citations may not always be 100% accurate.