(1921). Control of the employment of children in agriculture in Canada and the United States of America. International Labour Organization.
Chicago-Zitierstil (17. Ausg.)Control of the Employment of Children in Agriculture in Canada and the United States of America. International Labour Organization, 1921.
MLA-Zitierstil (9. Ausg.)Control of the Employment of Children in Agriculture in Canada and the United States of America. International Labour Organization, 1921.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.