The Division of labor standards ..
Series: United States.  Dept. of Labor.  Division of Labor Standards. Bulletin -- no. 33; Bulletin (United States. Division of Labor Standards) -- no. 33
Publisher: U.S. Govt. Print. Off.
Published: 1939
Place of publication: Washington
Language: eng
Number of pages: 22
Subjects: United States. -- Bureau of Labor Standards
Notes: "The division's publications on labor standards":  p. 20-21