00451nam a2200157Ia 4500008004100000082001600041100001600057245003300073260004300106300000800149650004100157650003400198653002700232700001700259700001700276170901s1960    xx            000 0 und d  a631.3bB14P  aBainer, Roy 0aPrinciples of Farm Machinery  aLondonbJohn Wiley and Sons, Incc1960  a571  aAgriculture and related technologies  aTechnology (Applied sciences)  aAgricultural machinery  aBarger, E.L.  aKepner, R.A.