Columbia subject headings:
Harvard subject headings:
Migrant agricultural laborers--Brazil--Ribeirão Prêto Region--Social conditions.
Ribeirão Prêto Region (Brazil)--Social conditions.
Social problems--Brazil--Ribeirão Prêto Region.
Princeton subject headings:
Agricultural laborers--Brazil--Ribeirão Prêto Region.
Migrant labor--Brazil--Ribeirão Prêto Region.
Social classes--Brazil--Ribeirão Prêto Region.
Social problems--Brazil--Ribeirão Prêto Region.