APA (7th ed.) Citation

Freud, S., Breuer, J., & Luckhurst, N. (2004). Studies in hysteria. Penguin Books.

Chicago Style (17th ed.) Citation

Freud, Sigmund, Josef Breuer, and Nicola Luckhurst. Studies in Hysteria. London ; New York: Penguin Books, 2004.

MLA (8th ed.) Citation

Freud, Sigmund, et al. Studies in Hysteria. Penguin Books, 2004.