00411nam a2200133Ia 4500008004100000082001500041100002200056245003400078260003900112300001500151600004800166600004300214650002000257140224s9999    xx            000 0 und d  a631.115 L8  aOsburn, Donald D.  aModern agriculture management  aVirginiabRest on Publishingc1978  axiii,369p.  a Donald D.Osburn and Kenneth C.Schneeberger  aSchneeberger, Kenneth C., joint author  aFarm management