000 00334nam a2200121Ia 4500
008 140113s9999 xx 000 0 und d
082 _a633 J9
100 _a"Wolfe, T.K. and Kipps, M.S."
245 _aProduction of field crops : A textbook of Agronomy
260 _a1959
_bMcGraw Hill Book
_cNew York
300 _a653
942 _cBK
999 _c57037
_d57037