000 00254nam a2200109 4500
999 _c338066
_d338066
020 _a9788131314463
082 _a333.7
_bCHI.E
100 _aM.G.Chitkara
245 _aEnvironmental Concerns and Strategies
260 _aNewDelhi
_bAPH
_c2012
942 _cBK