00386nam a2200133Ia 4500008004100000082001600041100004900057245004200106260003400148300000800182650001400190650002000204653002800224170901s1961    xx            000 0 und d  a334.683bY3  aPlunkett Foundation For Co-operative Studies 0aYear Book of Agricultural Cooperation  aOxfordbBasil Blackwellc1961  a307  aEconomics  aSocial sciences  aCooperative agriculture