Columbia subject headings:
Mexico--History--1821-1861--Sources.
Mexico--History--European intervention, 1861-1867--Sources.
Nuevo León (Mexico : State)--History--Sources.
Harvard subject headings:
Mexico--History--1821-1861--Sources.
Mexico--History--European intervention, 1861-1867--Sources.
Nuevo León (Mexico : State)--History--Sources.
Princeton subject headings:
Mexico--History--1821-1861--Sources.
Mexico--History--European intervention, 1861-1867--Sources.
Nuevo León (Mexico : State)--History--Sources.