Columbia subject headings:
Architecture, Industrial--France--Midi-Pyrénées.
Architecture--France--Midi-Pyrénées--History--19th century.
Architecture--France--Midi-Pyrénées--History--20th century.
Harvard subject headings:
Architecture, Industrial--France--Midi-Pyrénées--History.
Architecture, Industrial--France--Midi-Pyrénées.
Architecture--France--Midi-Pyrénées--History.
Princeton subject headings:
Architecture, Industrial--France--Midi-Pyrénées.
Architecture--France--Midi-Pyrénées--19th century.
Architecture--France--Midi-Pyrénées--20th century.