Columbia subject headings:
Mexico--Boundaries--United States.
Mexico--History--Revolution, 1910-1920.
Texas--History--1846-1950.
United States--Boundaries--Mexico.
United States--Foreign relations--1909-1913.
United States--Foreign relations--1913-1921.
Harvard subject headings:
Mexico--Boundaries--United States.
Mexico--History--Revolution, 1910-1920.
Texas--History--1846-1950
United States--Boundaries--Mexico.
United States--Foreign relations--1909-1913.
United States--Foreign relations--1913-1921.
Princeton subject headings:
Mexico--Boundaries--United States.
Mexico--History--Revolution, 1910-1920.
Texas--History--1846-1950.
United States--Boundaries--Mexico.
United States--Foreign relations--1910-1913.
United States--Foreign relations--1913-1921.