Chopra, J. K. General knowledge national & international: For UPSC Civil services preliminary examination & All State Public Service Commission examinations. Unique Publishers (I) pvt. Ltd..
Chicago Edition CitationChopra, J. K. General Knowledge National & International: For UPSC Civil Services Preliminary Examination & All State Public Service Commission Examinations. Delhi: Unique Publishers (I) pvt. Ltd..
MLA Edition CitationChopra, J. K. General Knowledge National & International: For UPSC Civil Services Preliminary Examination & All State Public Service Commission Examinations. Unique Publishers (I) pvt. Ltd..
Warning: These citations may not always be 100% accurate.