000 00321nam a2200145Ia 4500
008 170101s1974 xx 000 0 und d
082 _a574.5 U-8E
100 _aUSHER, M. B
245 0 _aEcological stability
260 _bLondon
_c1974
300 _a196p
650 _aECOLOGY
653 _aECOLOGY
942 _2ddc
_cB
999 _c70421
_d70421