000 00371nas a2200109Ia 4500
008 130520n1930 xxu |||gr||||Z||||||eng
100 _eAuthor.
245 0 _aAgronomy Journal Vol. 22
_hBound Volumes
260 _aUSA
_bAmerican Society of Agronomy
_c1930
300 _a1091.
942 _2ddc
_cBV
999 _c62491
_d62491