000 00282nam a2200121Ia 4500
008 191031s9999 xx 000 0 und d
100 _aGeorge C.Webster
245 0 _aNitrogen metabolism in plants
260 _bHarper & row
260 _c1965
365 _b15.00
942 _cBK
999 _c196411
_d196411