Columbia subject headings:
Chiapas (Mexico)--History--20th century.
Mexico--History--Revolution, 1910-1920.
Harvard subject headings:
Chiapas (Mexico)--History--20th century.
Mexico--History--Revolution, 1910-1920.
Princeton subject headings:
Chiapas (Mexico)--History--20th century--Congresses.
Chiapas (Mexico)--Politics and government--20th century--Congresses.
Mexico--History--Revolution, 1910-1920--Congresses.