Columbia subject headings:
Democracy--Mexico--History.
Madero, Francisco I., 1873-1913.
Mexico--History--1910-1946.
Harvard subject headings:
Democracy--Mexico--History.
Madero, Francisco I., 1873-1913.
Mexico--History--1867-1910.
Mexico--History--1910-1946.
Mexico--Politics and government--1867-1910
Princeton subject headings: