00274nam a2200109Ia 4500008004100000082001900041100001400060245002900074250000900103260004400112300000800156240913s9999||||xx |||||||||||||| ||und||  a658.408  PAN/E  aGN Pandey 0aEnvironmental Management  aNULL  bVikas Publishing HouseaNew Delhic2008  a398