Columbia subject headings:
Citrus fruit industry--Mexico--Yucatán (State)--Employees.
Occupations--Mexico.
Peasants--Mexico--Yucatán (State)
Harvard subject headings:
Occupations--Mexico--Yucatán (State)
Rural development--Mexico--Yucatán (State)
Princeton subject headings:
Citrus fruit industry--Mexico--Yucatan (State)--Employees.
Peasants--Mexico--Yucatan (State).