Columbia subject headings:
Sisal (Fiber)
Yucatán (Mexico : State)--Social conditions.
Harvard subject headings:
Henequen (Plant)--Mexico--Yucatán (State)--History.
Henequen industry--Political aspects--Mexico--Yucatán (State)
Henequen industry--Social aspects--Mexico--Yucatán (State)
Mayas--Mexico--Yucatán (State)--Social conditions.
Sisal (Fiber)--Mexico--Yucatán (State)--History.
Yucatán (Mexico : State)--Social conditions.
Princeton subject headings: