Columbia subject headings:
Elections--Mexico.
Mexico--History--Revolution, 1910-1920.
Mexico--Politics and government--1910-1946.
Harvard subject headings:
Elections--Mexico
Mexico--History--Revolution, 1910-1920.
Mexico--Politics and government--1910-1946.
Princeton subject headings:
Elections--Mexico.
Mexico--History--Revolution, 1910-1920.
Mexico--Politics and government--1910-1946.