Columbia subject headings:
Harvard subject headings:
Cartographers--Mexico--Nuevo León (State)
Cartography--Mexico--Nuevo León (State)--History--19th century.
Nigra de San Martin, Santiago.
Nuevo León (Mexico : State)--History--19th century.
Nuevo León (Mexico : State)--Maps.
Princeton subject headings:
Cartography--Mexico--Nuevo León (State)--History.
Nigra de San Martin, Santiago.