000 00296nam a2200121Ia 4500
008 220204s9999 xx 000 0 und d
082 _a631/635
_bADV.21
245 0 _aAdvances in agronomy. V 21
260 _aNew York
_bAcademic
_c1969
650 _aAgronomy
650 _aForage crop
942 _cBK
999 _c22385
_d22385