Columbia subject headings:
Architecture--France--Lyon--History--20th century.
Avenir (Cooperative society)
Cooperative societies--France--Lyon.
Lyon (France)--Buildings, structures, etc.
Harvard subject headings:
Architectural firms--France--Lyon.
Architecture, Modern--20th century--France--Lyon
L'AVENIR.
Lyon (France)--Buildings, structures, etc.
Lyon (France)--History.
Urban renewal--France--Lyon.
Princeton subject headings: