Columbia subject headings:
Consular reports--United States--Periodicals.
Manufacturing industries--United States--Periodicals.
United States--Commerce--Periodicals.
Harvard subject headings:
Consular reports--United States--Periodicals.
Manufacturing industries--United States--Periodicals.
United States--Commerce--Periodicals.
Princeton subject headings:
Consular reports--United States--Periodicals.
Manufacturing industries--United States--Periodicals.
Periodicals.
United States--Commerce--Periodicals.