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Supplementary code of fair competition for the highway contractors industry (a subdivision of the general contractors division of the construction industry) as approved on March 16, 1935 by President Roosevelt
- "Highway contractors industry"
- "Highway contractors industry"@en
- "Supplementary code of fair competition for the highway contractors industry (a subdivision of the general contractors division of the construction industry) as approved on March 16, 1935 by President Roosevelt"
- "Supplementary code of fair competition for the highway contractors industry (a subdivision of the general contractors division of the construction industry) as approved on March 16, 1935 by President Roosevelt"@en