00508nam a22001697a 4500020001800000082001600018100001700034245013500051260002800186300002600214520002200240650001300262650001400275650001400289650001600303700001900319  a9789353065843  a577 bEDG/G  aEdgar Thorpe  aGeneral studies for civil services preliminary examination:cGeography and environmental ecology/bThorpe Edgar and Showick Thorpe  aNoida:bPearson,c2019.  aVarying pages;b28cm.  aPaper 1 Volume IV  aIAS Exam  aUPSC Exam  aGeography  aEnvironment  aShowick Thorpe