Suggested local standards for training steamfitting apprentices,  based on the National standards for steamfitting apprentship. 
Prepared by National Joint Steamfitting Apprenticeship Committee, in cooperation with Federal Committee on Apprenticeship, approved by Heating, Piping, and Air Conditioning Contractor's National Association and the United Association of Journeymen Plumbers and Steamfitters. 
 - Washington,  U.S. Govt. Print. Off.,  1940. 
 - ix, 15 p.  facsims.  27 cm. 
 - [U.S. Dept. of Labor. Division of Labor Standards] Bulletin no. 28, part II. .
<br/><br/> At head of title: United States Department of Labor. Frances Perkins, secretary. Division of Labor Standards. V. A. Zimmer, director.  Part I of Bulletin no. 28 has title: National standards for steamfitting apprenticeship. 
<br/><br/><label>LCCN: </label>l  40000102  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Apprentices--United States.<br/>Pipe fitting.
<br/><br/><label>LC Class. No.: </label>HD4885.U5  / N282