Columbia subject headings:
Mexico--History--1910-1946.
Mexico--History--Periodicals.
Sonora (Mexico : State)--History--Sources.
Harvard subject headings:
Mexico--History--Periodicals.
Princeton subject headings:
Mexico--History--1910-1946--Periodicals.
Mexico--History--Revolution, 1910-1920--Periodicals.
Mexico--History--Revolution, 1910-1920--Sources--Periodicals.
Periodicals.