000 003320000a22001570004500
020 _a0-12-000723-1
060 _a100
082 _a630.685 ADV.23
100 _aBrady, N C
245 _aAdvances in agronomy V.23
260 _aNewyork, Academic press
260 _c1971
300 _a407
650 _aAgronomy
942 _cBK
999 _c206366
_d206366