BiblioVault may have an electronic file which would meet your requirements for this title:
Greek Tragedies 1: Aeschylus: Agamemnon, Prometheus Bound; Sophocles: Oedipus the King, Antigone; Euripides: Hippolytus
Mark Griffith, Glenn W. Most, David Grene and Richmond Lattimore
Paper: 978-0-226-03528-4
Cloth: 978-0-226-03514-7
Electronic: 978-0-226-03531-4