Briefe 1873-1939

MLA

Freud, Sigmund, Ernst L Freud, and Lucie Freud. Briefe 1873-1939. 2nd. ed. Zurich: Ex libris, .

APA

Freud, S., Freud, E. L, & Freud, L. Briefe 1873-1939. 2nd. ed. Zurich: Ex libris.

Chicago

Freud, Sigmund Briefe 1873-1939. Edited by Ernst L Freud and Lucie Freud. 2nd. ed. Zurich: Ex libris.