Columbia subject headings:
Harvard subject headings:
Henequen (Plant)--Mexico--Yucatán (State)--History.
Land reform--Mexico--Yucatán (State)--History.
Yucatán (Mexico : State)--Rural conditions.
Princeton subject headings:
Henequen (Plant)--Mexico--Yucatán (State)--History.
Land reform--Mexico--Yucatán (State)--History.
Yucatán (Mexico : State)--Rural conditions.