APA (7th ed.) Citation

Euripides, Michie, J., & Leach, C. (1992). Helen. Oxford University Press.

Chicago Style (17th ed.) Citation

Euripides, James Michie, and Colin Leach. Helen. New York: Oxford University Press, 1992.

MLA (9th ed.) Citation

Euripides, et al. Helen. Oxford University Press, 1992.