The employment-certificate system
Subtitle: a safeguard for the working child
By: prepared in collaboration with the Child Conservation Section of the Field Division, Council of National Defense.
Contributors: United States. Council of National Defense. Field Division. Child Conservation Section.
Series: United States. Children's Bureau. Publication -- no. 56; Children's year leaflet -- no. 12.; Bureau publication (United States. Children's Bureau.) -- no. 56.
Publisher: Government Printing Office
Published: 1919
Place of publication: Washington, D.C
Language: eng
Number of pages: 12
Subjects: Child labor -- United States