00432    a2200169   4500082001800000100001800018245003300036250001200069260003800081300001900119650002800138650001800166650001300184650003100197700001800228700001600246  a629.2252bKEP  aKepner, R. A.  aPrinciples of farm machinery  a3rd ed.  aDelhibCBS publishersc1978g1978  axi,527p.c21cm  aBranches of engineering  aWork vehicles  aTractors  aMotor land vehicles, cycle  aBarger, E. L.  aBainer, Roy