Columbia subject headings:
Piscator, Erwin, 1893-1966.
Theater--History--20th century.
Theater--Political aspects.
Harvard subject headings:
Piscator, Erwin, 1893-1966.
Theater--Germany--History--19th century.
Theater--Political aspects--Germany.
Theatrical producers and directors--Germany--Biography
Princeton subject headings:
Piscator, Erwin, 1893-1966.