National roofers apprenticeship and training standards. - National Joint Apprenticeship and Training Committee for the Roofing Industry; National Roofing Contractors' Association (Washington] U.S. Dept. of Labor, Manpower Administration, Bureau of Apprenticeship and Training, 1965)
Cover title.
Earlier edition issued in 1946 by the National Roofing Contractors' Association under title: National pattern for local apprenticeship standards in the roofing industry.
Keywords: Apprentices -- United States; Roofing