Labor offices in the United States and in Canada
Series: Bulletin -- no. 621; Bulletin of the United States Bureau of Labor Statistics -- 621.
Publisher: Govt. Print. Off.
Published: 1936
Place of publication: Washington
Language: eng
Number of pages: 30
Notes: At head of title: United States Department of labor. Frances Perkins, secretary. Bureau of labor statistics. Isador Lubin, commissioner.