Columbia subject headings:
Industrial productivity--United States--Congresses.
Labor productivity--United States--Congresses.
Harvard subject headings:
Industrial productivity--United States--Congresses.
Labor productivity--United States--Congresses.
United States--Economic conditions--1945---Congresses.
Princeton subject headings:
Capital productivity--United States--Congresses.
Labor productivity--United States--Congresses.
United States--Economic conditions--1945---Congresses.