Columbia subject headings:
Harvard subject headings:
Business and politics--Mexico--Yucatán (State)--History.
Henequen industry--Mexico--Yucatán (State)--History.
International Harvester Company--History.
International business enterprises--Mexico--Yucatán (State)--History.
Yucatán (Mexico : State)--Politics and government.
Princeton subject headings:
Haciendas--Mexico--Yucatán (State)--History.
Henequen industry--Mexico--Yucatán (State)--History.
International Harvester Company--History.