000 00303nam a2200121Ia 4500
008 220204s9999 xx 000 0 und d
082 _a631/635
_bPEA
100 _aPEARSON, Lorentz C
245 0 _aPrinciples of agronomy
260 _aNew York
_bReinhold
_c1967
650 _aCrop production
942 _cBK
999 _c21366
_d21366