000 00298nam a2200109Ia 4500
008 211214s9999 xx 000 0 und d
040 _cJayakar Knowledge Resource Centre
100 _aClarke, George L.
245 0 _aElements of Ecology
260 _bJohn Wiley and sons
_aNew York
_c1954
942 _c1
999 _c34594
_d34594