71. Job descriptions and suggested techniques for determining courses of study in vocational education programs: Mechanical drafting and design technology, 1, Field of work, 2, Job relationships, 3, Job descriptions, 4, Training requirements; [prepared by Clarence E. Peterson]. Bookmark Corporate/Agency Authors: Education Office and Health, Education and Welfare Dept. Publisher: Education Office Date: [1959.] SuDoc number: FS 5.280:80000