Columbia subject headings:
Capitalism--Periodicals.
United States--Economic conditions--Periodicals.
Working class--Periodicals.
Working class--United States--Periodicals.
Harvard subject headings:
Capitalism--Periodicals.
United States--Economic conditions--Periodicals.
Working class--Periodicals
Working class--United States--Periodicals
Princeton subject headings:
Capitalism--Periodicals.
Labor--United States.
Periodicals.
United States--Economic conditions--1918-1945--Periodicals.
United States--Economic conditions--1945---Periodicals.