000 00302nam a2200109Ia 4500
008 180426s2012 xx 000 0 und d
082 _a633 MAR-P
100 _aMartin, J.H. & Others
245 0 _aPrinciples of Field Crops Production
260 _aNew York
_bMacmillan Pub. Co.
_c1976
942 _2ddc
_cBB
999 _c130329
_d130329