000 00295nam a2200121Ia 4500
008 191031s9999 xx 000 0 und d
100 _aBrouughton (WJ) Ed
245 0 _aNitrogen fixation Vol.1 Ecology
260 _b"Clarendon Press, Oxford"
260 _c1983
365 _b676
942 _cBK
999 _c215247
_d215247