000 00309nam a2200133Ia 4500
008 230108s9999 xx 000 0 und d
100 _aBeevers L.
245 0 _aNitrogen Metabolism in Plants
260 _bAR. Nold-Heinemann
260 _c1976
365 _b55.00
650 _aSoil science
942 _cBK
999 _c239175
_d239175