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  1. Occupational requirements for young men entering farming in York County, Pennsylvania a thesis / by William Vernon Godshall.
    By: Godshall, William Vernon,
    Publication info: 1942.
    Contributed by: Penn State University (archive.org)
    Subjects: Agriculture  Occupations  Pennsylvania  York County  
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  2. Studies of occupations in agriculture, forestry, and animal industry, by Frederick J. Allen...prepared under the auspices of the Bureau of vocational guidance, Graduate school of education, Harvard university.
    By: Allen,Frederick James, - Harvard University.
    Publication info: Cambridge, Harvard university,1921.
    Contributed by: University of California Libraries (archive.org)
    Subjects: Agriculture  Animal industry  Forests and forestry  Occupations  
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