Columbia subject headings:
Harvard subject headings:
French--Mexico, North--History.
French--Mexico--History.
French--Mexico--Saltillo (Coahuila)--History.
Mexico, North--Emigration and immigration--History.
Mexico--Emigration and immigration--History.
Saltillo (Coahuila, Mexico)--Emigration and immigration--History.
Saltillo (Coahuila, Mexico)--History.
Princeton subject headings:
French--Mexico--History.
French--Mexico--Saltillo (Coahuila)--History.
Mexico--Emigration and immigration--History.