Columbia subject headings:
Fundidora Monterrey (Mexico)--Employees.
Fundidora Monterrey (Mexico)--History.
Iron and steel workers--Mexico--Monterrey.
Harvard subject headings:
Anecdotes
Fundidora Monterrey (Mexico)--History--Sources.
Interviews
Iron industry and trade--Mexico--Monterrey--History--Sources.
Steel industry and trade--Mexico--Monterrey--History--Sources.
Princeton subject headings: