000			00344nam a2200145Ia 4500
008			140317s9999 xx 000 0 und d
082			_a581.5
100			_aWillis,A.J.
245			_aIntroduction to plant ecology.
260			_aLondon _bGeorge Allen , Unwin _c1973
300			_a237
650			_aBotany
653			_aBotany
942			_2ddc _cBK
999			_c6723 _d6723