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Strachey, J., Freud, A., Strachey, A. & Tyson, A. (1959) The Standard Edition of the Complete Psychological Works of Sigmund Freud, Volume XX (1925-1926): An Autobiographical Study, Inhibitions, Symptoms and Anxiety, The Question of Lay Analysis and Other Works. The Standard Edition of the Complete Psychological Works of Sigmund Freud 20:1-292