Columbia subject headings:
Child labor--United States.
Children--Legal status, laws, etc.--United States.
Christian sociology--Catholic Church.
Labor--Religious aspects--Christianity.
Harvard subject headings:
Child labor--United States
Children--Employment--United States.
Children--Legal status, laws, etc.--United States
Christian sociology--Catholic Church
Labor--Religious aspects--Christianity
Princeton subject headings:
Child labor--United States.
Children--Legal status, laws, etc.--United States.
Christian sociology--Catholic Church.
Labor--Religious aspects--Christianity.