000 00252nam a2200097Ia 4500
008 220204s9999 xx 000 0 und d
082 _a001.814
_bAME
245 0 _aResearch with a mission
260 _aMadison
_bAmerican Soc of agronomy
_c1969
942 _cBK
999 _c22511
_d22511