00446nam a22001697a 4500003000400000008004100004020001800045082001700063100002400080245004200104250001200146260003900158300001200197650002000209650003300229650001400262OSt190530b           ||||| |||| 00| 0 eng d  a9789380534084  a363.73bK55P  aKhan, Waseem Ahmad.  aParyavarana Pradushan aur Sanrakshana  a1st ed.  aNew DelhibRajat Publicationc2012  av,288p.  aSocial Sciences  aSocial Problems and Services  aPollution