000 00290nam a2200109Ia 4500
008 220407s2009 xx 000 0 und d
041 _aeng
082 _a333.7
_bSHA
100 _aSharma,J.P
_9462465
245 _aEnvironmental Studies
260 _aNew Delhi
_b University Science Press
_c2009
999 _c333871
_d333871