- Physical Description: 1 online resource (8 pages) : illustrations
- Publisher: Washington, D.C. : U.S. Department of Labor, Bureau of Labor Statistics, 1980.
|General Note:|| "May 1980."
|Source of Description Note:|| Description based on online resource, PDF version; title from cover (FRASER, viewed Oct. 18, 2017).
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|Subject:||Apprentices > United States.