000 00291nam a2200121Ia 4500
008 150331s1997 xx 000 0 und d
020 _a9788125902928
100 _aPandey , G.N.
245 _aEnvironmental Studies
260 _bVikas Publication
_c1997
300 _a398
942 _2ddc
_cBK
_01
999 _c2072
_d2072