00470nam a22001697a 4500003000400000008004100004020001800045082001600063100001900079245004800098260004000146300001300186650002000199650003300219650002700252650002100279OSt190211b        xxu||||| |||| 00| 0 eng d  a9788192920771  a363.7bS48G  aSingh, Satnam.  aGreen Technology and Environment Monitoring  aNew DelhibVarun Publicationsc2014  avi,296p.  aSocial Sciences  aSocial Problems and Services  aEnvironmental Sciences  aGreen Technology