00486nam a2200193Ia 4500008004100000020001500041082001600056100002000072245004300092250000600135260003600141300000800177650001400185650002000199653001600219653002100235700001600256700002000272170901s1999    xx            000 0 und d  a0139011900  a338.1bP35I  aPenson, John B. 0aIntroduction to Agricultural Economics  a2  aNew JerseybPrentice Hallc1999  a572  aEconomics  aSocial sciences  aAgriculture  aEconomic aspects  aCapps, Oral  aRosson, C. Parr