000 003040000a22001450004500
060 _a100
082 _a630.685 ADV.15
100 _aNorman, A G
245 _aAdvances in agronomy V.15
260 _aNewyork, Academic press
260 _c1963
300 _a415
650 _aAgronomy
942 _cBK
999 _c347912
_d347912