Columbia subject headings:
De Filippo, Eduardo, 1900-1984--Criticism and interpretation.
Fo, Dario--Criticism and interpretation.
Theater--Italy--History--20th century.
Harvard subject headings:
De Filippo, Eduardo, 1900-1984--Criticism and interpretation.
Fo, Dario--Criticism and interpretation.
Theater--Italy--History--20th century
Princeton subject headings:
De Filippo, Eduardo, 1900-1984--Criticism and interpretation.
Fo, Dario--Criticism and interpretation.
Theater--Italy--History--20th century.