United States. Division of Labor Standards. (1940). Suggested local standards for training steamfitting apprentices, based on the national standards for steamfitting apprenticeship. [publisher not identified].
Chicago Style (17th ed.) CitationUnited States. Division of Labor Standards. Suggested Local Standards for Training Steamfitting Apprentices, Based on the National Standards for Steamfitting Apprenticeship. [Washington]: [publisher not identified], 1940.
MLA (9th ed.) CitationUnited States. Division of Labor Standards. Suggested Local Standards for Training Steamfitting Apprentices, Based on the National Standards for Steamfitting Apprenticeship. [publisher not identified], 1940.
Warning: These citations may not always be 100% accurate.