000			00400nam a2200133Ia 4500
008			130225s9999 xx 000 0 und d
020			_a0792334132
080			_a631.461.5:531.588.8 _bS989M
245			_aManagement of biological nitrogen fixation for the development of more productiv
260			_aBoston _bKluwer Academic Publishers _c1995
300			_a194p.
901			_a218915
942			_cB _2udc
999			_c12486 _d12486