Columbia subject headings:
Harvard subject headings:
Businessmen--France--Drôme--History.
Chambre de commerce et d'industrie de Valence et de la Drôme--History.
Drôme (France)--Commerce--History.
Princeton subject headings:
Businessmen--France--Drôme--History.
Chambre de commerce et d'industrie de Valence et de la Drôme--History.
Drôme (France)--Commerce--History.