000 00321nam a2200133Ia 4500
008 160316s1979 xxu||||| |||| 00| 0 eng d
020 _a
100 _aBrij Gopal
245 _aElements Of Ecology
250 _a1st
260 _aU.P
_bVIKAS PUBLISHING HOUSE PVT. LTD.
_c1979
300 _a200
700 _a N. Bhardwaj
_a
999 _c11484
_d11484