Columbia subject headings:
Electra (Greek mythological figure)--In literature.
Sophocles--Stage history--Greece.
Sophocles. Electra.
Harvard subject headings:
Electra (Greek mythological figure)--Drama.
Electra (Greek mythological figure)--In literature.
Greek drama (Tragedy)--Adaptations--History and criticism.
Sophocles--Stage history--Greece.
Sophocles. Electra.
Princeton subject headings:
Electra (Greek mythological figure)--In literature.
Sophocles--Stage history--Greece.
Sophocles. Electra.