000			00351nam a2200133Ia 4500
008			140215s9999 xx 000 0 und d
084			_aX:8:(J:1:2) _bEFF;1953
100			_aEfferson, J N.
245			_aPrinciples of Farm Management / _b
260			_bMcGRAW-HILL BOOK CO. , _aLondon : _c1953
300			_a431p :
650			_aEconomic
942			_2cc _cBK
999			_c8989 _d8989