Columbia subject headings:
Gran Fundición Central Mexicana--History.
Mineral industries--Mexico--Aguascalientes (State)--History.
Harvard subject headings:
Gran Fundición Central Mexicana--History.
Mineral industries--Mexico--Aguascalientes (State)--History.
Princeton subject headings:
Gran Fundición Central Mexicana--History.
Mineral industries--Mexico--Aguascalientes (State)--History.