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