Columbia subject headings:
Drama--20th century--History and criticism.
Szondi, Peter. Theorie des modernen Dramas.
Harvard subject headings:
Drama--20th century--History and criticism
Szondi, Peter. Theorie des modernen Dramas.
Princeton subject headings:
Drama--20th century--History and criticism.
Szondi, Peter. Theorie des modernen Dramas.