Administration of child labor laws.
Contributors: Sumner, Helen L. 1876-1933.; Hanks, Ethel E. b. 1883.; Bird, F. H.; Merritt, Ella Arvilla, b. 1882.
Series: Bureau publication / U.S. Children's Bureau ;; nos. 12, 17, 41, 85, 133; Bureau publication (United States. Children's Bureau) ;; nos. 12, 17, 41, 85, 133.
Publisher: Govt. Print. Off.
Published: 1915
Place of publication: Washington
Language: eng
Subjects: Child labor -- Connecticut; Child labor -- Maryland; Child labor -- Wisconsin; Child labor -- New York (State)
Other titles: Employment certificate system Connecticut.
Notes: Parts 1-4 issued also as Industrial series, no. 2 (U.S. Children's bureau)
Table of contents: title: pt. 1. Employment certificate system, Connecticut.; title: pt. 2. Employment certificate system, New York.; title: pt. 3. Employment certificate system, Maryland.; title: pt. 4. Employment certificate system, Wisconsin.; title: pt. 5. Standards applicableto the administration of employment-certificate systems.