000 00306nam a2200121Ia 4500
008 170912s9999 xx 000 0 und d
082 _aX8(J) J1 ROB/A
100 _aROBERT C ROSS
245 3 _aAN INTRODUCTION TO AGRICULTURAL ECONOMICS
260 _bMETROPOLITAN BOOK CO
_c1951
300 _a414
942 _cTB
999 _c418
_d418