Columbia subject headings:
Harvard subject headings:
Industrial policy--Mexico--Yucatan (State)
Industrial policy--Mexico--Yucatán (State)--History--20th century.
Industries--Mexico--Yucatán (State)
Industries--Mexico--Yucatán (State)--History--20th century.
Yucatán (Mexico : State)--Economic conditions--20th century.
Princeton subject headings:
Industrial policy--Mexico--Yucatan (State).
Industries--Mexico--Yucatán (State).
Yucatán (Mexico : State)--Economic conditions--20th century.