000 00315nam a2200121Ia 4500
008 170101s1973 xx 000 0 und d
082 _a574.5 USH
100 _aUsher M.B.
245 0 _aBiological Management and Conservation
260 _aAhmedabad
_bHimanshu Book Co.
_c1973
300 _a396 p.
942 _2ddc
_cB
999 _c451716
_d451716