Columbia subject headings:
Mexico--History--Congresses.
Mexico--Intellectual life--Congresses.
Mexico--Politics and government--Congresses.
Harvard subject headings:
Mexico--History--Revolution, 1910-1920--Congresses.
Mexico--History--Wars of Independence, 1810-1821--Congresses.
Princeton subject headings:
Mexico--History--Congresses.
Mexico--Intellectual life--Congresses.
Mexico--Politics and government--Congresses.