00492nam a2200181Ia 4500008004100000082001700041100001800058245006100076260003700137300000800174650001400182650002000196653002400216653001600240653001400256700002100270700001900291170901s1968    xx            000 0 und d  a338.14bD51E  aDoll, John P. 0aEconomics of Agricultural Production, Markets and Policy  aIllinoisbRichard D. Irwinc1968  a557  aEconomics  aSocial sciences  aAgricultural policy  aAgriculture  aMarketing  aRhodes, V. James  aWest, Jerry G.