Columbia subject headings:
Harvard subject headings:
Henequen industry--Mexico--Yucatán (State)
Indians of Mexico--Mexico--Yucatán (State)--Economic conditions.
Indians of Mexico--Mexico--Yucatán (State)--Ethnic identity.
Mayas--Economic conditions
Mayas--Ethnic identity.
Princeton subject headings:
Henequen industry--Mexico--Yucatán.
Indians of Mexico--Mexico--Yucatán--Economic conditions.
Indians of Mexico--Mexico--Yucatán--Ethnic identity.
Mayas--Economic conditions.
Mayas--Ethnic identity.