Ogburn, William Fielding.
Progress and uniformity in child-labor legislation : a study in statistical measurement / William F. Ogburn. - New York : Collumbia University, 1912. - 221 p. : ill. ; 25 cm.
12025014
Child labor--United States.
Labor laws and legislation--United States.
HD6243.U5 / O6
331.026 / OGP
Progress and uniformity in child-labor legislation : a study in statistical measurement / William F. Ogburn. - New York : Collumbia University, 1912. - 221 p. : ill. ; 25 cm.
12025014
Child labor--United States.
Labor laws and legislation--United States.
HD6243.U5 / O6
331.026 / OGP