General Science Paper - I For Civil Services Preliminary Examination - Chand, Tara; Johry, Shabnam; Saxena, TanushriKathpalia, Renu (McGraw Hill Education (India) Pvt. Ltd., New Delhi, 2014)
Keywords: Entry In Services / Coaching In Services; Entry In Services / Coaching In Services,General,Science:Paper-I,Competition:Civil,Services:IAS:GK,Environment,Biodiversity,Climate,Change