BiblioVault may have an electronic file which would meet your requirements for this title:
Greek Tragedies 3: Aeschylus: The Eumenides; Sophocles: Philoctetes, Oedipus at Colonus; Euripides: The Bacchae, Alcestis
Mark Griffith, Glenn W. Most, David Grene and Richmond Lattimore
Paper: 978-0-226-03593-2
Cloth: 978-0-226-03576-5
Electronic: 978-0-226-03609-0