00305nam a2200109Ia 4500008004100000040003800041100001900079245003300098260003300131300001700164653001400181211214s9999    xx            000 0 und d  cJayakar Knowledge Resource Centre  aWolff, Henry W 0aCo-operation in agriculture.  bP S KING & SONaLONDONc1912  aIX, 178 p p.  aECONOMICS