National pattern for local apprenticeship standards in the roofing industry
Publisher: U.S. Dept. of Labor, Apprentice Training Service
Published: 1946
Place of publication: Washington
Language: eng
Number of pages: 24
Notes: "Formulated and adopted ... by the Executive Committees of the United Roofing Contractors Association and the United Slate, Tile and Composition Roofers, Damp and Waterproof Workers Association."--Foreword.