Columbia subject headings:
Fur traders--Canada--History--Sources--Bibliography.
Fur traders--United States--History--Sources--Bibliography.
Lande, Lawrence M.--Library--Catalogs.
Harvard subject headings:
Fur traders--Canada--History--Sources.
Lande, Lawrence M. (Lawrence Montague), 1906-
Lande, Lawrence M. (Lawrence Montague), 1906---Library--Catalogs.
Princeton subject headings:
Fur traders--Canada--History--Sources--Bibliography.
Fur traders--United States--History--Sources--Bibliography.
Lande, Lawrence M.--Library--Catalogs.