Kumar Vashist Ashish & Singh Ramesh. (2012). 1000 Plus Questions on General Science General Studies: For Civil Services Preliminary Examination Paper-1. New Delhi.
Chicago Edition CitationKumar Vashist Ashish and Singh Ramesh. 1000 Plus Questions on General Science General Studies: For Civil Services Preliminary Examination Paper-1. New Delhi, 2012.
MLA Edition CitationKumar Vashist Ashish and Singh Ramesh. 1000 Plus Questions on General Science General Studies: For Civil Services Preliminary Examination Paper-1. New Delhi, 2012.
Warning: These citations may not always be 100% accurate.