00490nam a22001572  4500001001100000005001700011008004100028020001700069040001500086100003200101245006200133260005200195300003100247650005100278852000300329000002512920151217155238.0141205s         xx           000 0 eng d  a1259006387 :  aKABUcKABU1 aChawla, Shashi.@000018554012aA Text book of environmental studies /cby Shashi Chawla.  aNew Delhi :bTata McGraw Hill Education,c2012.  a1 vol (various pagings.) ; 0aHuman ecologyxStudy and teaching.@00001855411