000			00364nam a2200133Ia 4500
008			140208s9999 xx 000 0 und d
020			_a9780120139071
044			_aUnited Kingdom
100			_aCragg, J.B., ed.
245			_aAdvances in ecological research. v.7, 1971 _c
260			_bAcademic Press _aLondon _c1971
300			_axi, 236 p.; 23cm.
942			_2udc _cSR
999			_c3540 _d3540