Collected papers.
With an introd. by the editor, Philip Rieff.

APA Citation

Freud, S., Rieff, P. (1963). Collected papers. [New York: Collier Books.

MLA Citation

Freud, Sigmund, 1856-1939, and Philip Rieff. Collected Papers. [New York: Collier Books, 1963.

Warning: These citations may not always be complete (especially for serials).