00455nam a2200157Ia 4500008004100000020001800041082001600059100002300075245004900098260005000147300000800197650003300205650002000238653001600258700002300274170901s2009    xx            000 0 und d  a9788131306604  a363.7bB20E  aBanik, Sudip Datta 0aEnvironmental Challenges of the 21st Century  aNew DelhibA P H Publishing Corporationc2009  a384  aSocial problems and services  aSocial sciences  aEnvironment  aBasu, Saikat Kumar