000 00446nam a2200169Ia 4500
008 170901s1976 xx 000 0 und d
020 _a0521206456
082 _a589.7
_bN95S
100 _aNutman, P.S
245 0 _aSymbiotic Nitrogen Fixation in Plants
260 _aCambridge
_bCambridge University Press
_c1976
300 _a584
650 _aBotanical sciences
650 _aPure Sciences
653 _aNitrogen fixation
942 _2ddc
_cBK
999 _c9887
_d9887