Columbia subject headings:
Euripides--Criticism and interpretation.
Theseus, King of Athens--In literature.
Harvard subject headings:
Erechtheus.
Euripides
Euripides--Criticism and interpretation.
Theseus, King of Athens
Theseus, King of Athens--In literature.
Princeton subject headings:
Euripides--Criticism and interpretation.
Theseus, King of Athens--In literature.