000 00284nam a2200109Ia 4500
008 220204s9999 xx 000 0 und d
082 _a631/635
_bADV.05
245 0 _aAdvances in agronomy. V 05
260 _aNew York
_bAcademic
_c1953
650 _aAgricultural engineering
942 _cBK
999 _c19421
_d19421