Columbia subject headings:
Alvarado, Salvador, 1880-1924.
Yucatán (Mexico : State)--Politics and government.
Harvard subject headings:
Alvarado, Salvador, 1880-1924.
Mexico--Politics and government--1910-1946.
Yucatán (Mexico : State)--History--1910-1946.
Yucatán (Mexico : State)--Politics and government--1910-1946.
Yucatán (Mexico : State)--History.
Yucatán (Mexico : State)--Politics and government.
Princeton subject headings:
Alvarado, Salvador, 1880-1924.
Yucatán (Mexico : State)--Politics and government.