000 00337nam a2200133Ia 4500
008 140317s9999 xx 000 0 und d
082 _a633
100 _aWolfe,T.K.
245 _aProduction of field crops, a text book of Agronomy.
260 _aNew York
_bMcGraw-Hill.
_c1959
300 _a653
700 _aKippa,M.S.
942 _2ddc
_cBK
999 _c1776
_d1776