Progress and uniformity in child-labor legislation
Subtitle: a study in statistical measurement
Series: Studies in history, economics and public law.  v. 48, no. 2, whole no. 121; Columbia studies in the social sciences -- no. 121
Publisher: Columbia University
Published: 1912
Place of publication: New York
Language: eng
Number of pages: 219
Subjects: Child labor -- United States; Labor laws and legislation -- United States.