Columbia subject headings:
Harvard subject headings:
Adour River Valley (France)--Commerce--History.
Adour River Valley (France)--Economic conditions.
Inland water transportation--Freight--France--Adour River Valley--History.
Merchants--France--Adour River Valley--Biography.
Princeton subject headings:
Adour River Valley (France)--Commerce--History.
Adour River Valley (France)--Economic conditions.
Inland water transportation--Freight--France--Adour River Valley--History.
Merchants--France--Adour River Valley--Biography.