000 00319nam a2200133Ia 4500
008 160316s1979 xxu||||| |||| 00| 0 eng d
020 _a070690754X
100 _aGopal , Brij & Bhardwaj
245 _aElements Of Ecology
250 _a1ST
260 _aUP
_bVIKAS PUBLISHING HOUSE
_c1979
300 _a200
700 _a
_a
999 _c9396
_d9396