APA (7th ed.) Citation

Freud, E. L., Freud, S., Zweig, A., & Robson-Scott, W. (1970). The letters of Sigmund Freud & Arnold Zweig. Hogarth Press.

Chicago Style (17th ed.) Citation

Freud, Ernst L., Sigmund Freud, Arnold Zweig, and W.D Robson-Scott. The Letters of Sigmund Freud & Arnold Zweig. London: Hogarth Press, 1970.

MLA (8th ed.) Citation

Freud, Ernst L., et al. The Letters of Sigmund Freud & Arnold Zweig. Hogarth Press, 1970.