01197cam a22002531  4500001001300000003000400013005001700017008004100034010001700075035001900092040007000111042001200181050002500193100003800218245005700256260009200313300003000405490009800435501022400533650004300757650005000800810007600850999001700926hew60000013 DLC20260227111510.0810804s1959    dcua         f000 0 eng c  ahew60000013   a(OCoLC)7639631  aU.S. Dept. of Health, Education, and Welfare. LibrarycWWauCdDLC  apremarc00aLC1045b.A25 no. 2801 aHollenberg, Alvin Herbert,d1901-10aFarm mechanics in vocational agriculture,ba survey.  a[Washington]bU.S. Dept. of Health, Education, and Welfare, Office of Educationc[1959]  av, 28 p.btables.c24 cm.1 a[U.S. Office of Education] Vocational Division. Bulletinvno. 280. Agricultural series no. 74  aWith : Supervision to improve instruction in distributive education / Roman F. Warmke. Washington : U.S. Dept. of Health, Education, and Welfare. Office of Education, 1959. Bound together subsequent to publication.5DLC 0aAgricultural educationzUnited States. 0aAgricultural engineeringxStudy and teaching.1 aUnited States.bDivision of Vocational Education.tBulletin ;vno. 280.  c34230d34230