Columbia subject headings:
Harvard subject headings:
Commerce--History--Bibliography--Periodicals.
Explorers--Bibliography--Periodicals.
James Ford Bell Collection.
James Ford Bell Library
Princeton subject headings:
Commerce--History--Bibliography--Periodicals.
Explorers--Bibliography--Periodicals.
James Ford Bell Collection--Periodicals.
James Ford Bell Library--Periodicals.
Voyages and travels--Bibliography--Periodicals.