000 00418nam a2200145Ia 4500
008 170101s1973 xx 000 0 und d
082 _a574.501 82 U-8B
100 _aUSHER, M.B
245 0 _aBiological management and conservation : ecological theory,application and planning
260 _bLondon
_c1973
300 _a394p
650 _aECOLOGY -- MAHTEMATICS
653 _aECOLOGY -- MAHTEMATICS
942 _2ddc
_cB
999 _c50469
_d50469