Administration of child labor laws. Part 2, Employment certificate system, New York [microform] / by Helen L. Sumner and Ethel E. Hanks.
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| Other title: | Employment-certificate system, New York. |
| Format: | Government Document Book |
| Language: | English |
| Published: |
Washington :
G.P.O.,
1917.
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| Series: | Bureau publication (United States. Children's Bureau) ;
no. 17. Industrial series ; no. 2 pt. 2. |
| Subjects: |
| Item Description: | At head of title: U.S. Department of Labor, Children's Bureau, Julia C. Lathrop, chief. |
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| Physical Description: | 164 pages : folded charts ; 25 cm. |