000 00304nam a2200121Ia 4500
008 210101s1951 xx 000 0 eng d
100 _aNorman, A.G.
245 0 _aAdvances in agronomy: volume 3
260 _aNew York
_bAcademic
_c1951
300 _a361
650 _aAdvances in agronomy
942 _2ddc
_cBK
999 _c4104
_d4104