000 00304nam a2200121Ia 4500
008 170101s2002 xx 000 0 und d
082 _a574.5 SHA
100 _aSharma P. D.
245 0 _aEcology and Environment
260 _aMeerut
_bRastogi Publications
_c2002
300 _a660 p.
942 _2ddc
_cB
999 _c1230716
_d1230716