Industrial instability of child workers : a study of employment-certificate records in Connecticut
著者
書誌事項
Industrial instability of child workers : a study of employment-certificate records in Connecticut
(Bureau publication / U.S. Department of Labor, Children's Bureau, no. 74)(Industrial series, no. 5)
Government Printing Office, 1920
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注記
At head of title: U.S. Department of Labor, Children's Bureau