000 00297nam a2200109Ia 4500
001 MPKV006597
008 120911s9999 xx 000 0 und d
082 _a338.1
245 _aJournal of Farm Economics
_c;
246 _aJournal of Farm Economics
260 _aUSAR
_bAmerican Farm Economics Association
999 _c6415
_d6415