Columbia subject headings:
Drama--Dictionaries.
Dramatists--Dictionaries.
Performing arts--Dictionaries.
Theater--Biography--Dictionaries.
Theater--Dictionaries.
Harvard subject headings:
Theater--Biography--Dictionaries--German.
Theater--Dictionaries--German.
Princeton subject headings:
Actors--Biography--Dictionaries.
Theater--Biography--Dictionaries.
Theater--Dictionaries--German.