Administration of child labor laws
Subtitle: part 2: employment certificate system (New York)
By: by Helen L. Sumner and Ethel E. Hanks
Series: Bureau publication -- no. 17; Industrial series -- no. 2, part 2; Industrial series (United States. Children's Bureau) -- no. 2, part 2; Bureau publication (United States. Children's Bureau) -- no. 17
Publisher: U.S. G.P.O.
Published: 1917
Place of publication: Washington, D.C
Language: eng
Number of pages: 164
Subjects: Child labor