Columbia subject headings:
Industrial arts--United States--History--Congresses.
Industrial management--United States--History--Congresses.
Industries--United States--History--Congresses.
Interchangeable mechanisms--Congresses.
Harvard subject headings:
Industrial arts--United States--History--Congresses.
Industrial management--United States--History--Congresses.
Industries--United States--History--Congresses.
Interchangeable mechanisms--Congresses.
Princeton subject headings:
Industrial arts--United States--History--Congresses.
Industrial management--United States--History--Congresses.
Industries--United States--History--Congresses.
Interchangeable mechanisms--Congresses.