Sigmund Freud, H. W. Chase (2016). “THE “UNCONSCIOUS” TRILOGY: The Interpretation of Dreams, Psychopathology of Everyday Life & Wit and Its Relation to the Unconscious: The Dream Book, The Mistake Book, The Joke Book & Freud’s Theories of the Unconscious”, p.435, e-artnow
Sigmund Freud, Carrie Lee Rothgeb (1957). “The Standard Edition of the Complete Psychological Works of Sigmund Freud: On the history of psycho-analytic movement, papers on metapsychology and other works”