Freud, S. (1957). The origins of psychoanalysis: Letters, drafts and notes to Wilhelm Flies, 1887-1902. New York: Doubleday Anchor Books.
Παραπομπή Chicago StyleFreud, Sigmund. The Origins of Psychoanalysis: Letters, Drafts and Notes to Wilhelm Flies, 1887-1902. New York: Doubleday Anchor Books, 1957.
Παραπομπή MLAFreud, Sigmund. The Origins of Psychoanalysis: Letters, Drafts and Notes to Wilhelm Flies, 1887-1902. New York: Doubleday Anchor Books, 1957.
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