Columbia subject headings:
Harvard subject headings:
Agricultural industries--Employees--Legal status, laws, etc.--United States.
Agricultural laborers--Legal status, laws, etc.--United States.
Agricultural laws and legislation--United States.
Migrant agricultural laborers--Legal status, laws, etc.--United States.
Migrant labor--Legal status, laws, etc.--United States.
United States. Migrant and Seasonal Agricultural Worker Protection Act.
Princeton subject headings:
Agricultural industries--Employees--Legal status, laws, etc.--United States.
Agricultural laborers--Legal status, laws, etc.--United States.
Agricultural laws and legislation--United States.
Migrant agricultural laborers--Legal status, laws, etc.--United States.