Columbia subject headings:
Capitalism--Drama.
England--Drama.
Labor movement--Drama.
Political plays.
Social classes--Drama.
Social conflict--Drama.
Socialists--Drama.
Working class families--Drama.
Working class--Drama.
Harvard subject headings:
Capitalism--Drama.
England--Drama.
Labor movement--Drama.
Political plays.
Social classes--Drama
Social conflict--Drama.
Socialists--Drama.
Working class families--Drama.
Working class--Drama.
Princeton subject headings:
Drama.
Socialism--Drama.
Working class--Great Britain--Drama.