000 00381nam a2200145Ia 4500
008 180712s9999 xx 000 0 und d
020 _a8171691129
082 _a333.7
_bSET
100 _aSETHI, Manmohan Singh
245 _aUnderstanding our environment
260 _aNew Delhi
_bCommonwealth pub.
_c1991
300 _axv, 440 p.
650 _aEnvironment-Protection
942 _cS
999 _c47104
_d47104