1. The standard edition of the complete psychological works of Sigmund Freud Freud, Sigmund 1856-1939 London : Vintage : 2001. CP504 PSY410
2. The ego and the mechanisms of defence Freud, Anna, 1895-1982. London : Routledge, 2018. CP504 PSY410
3. The collected works of C. G. Jung Jung, C. G. (Carl Gustav), 1875-1961. London : Routledge & Kegan Paul : 1953-<1994 > CP504 PSY410
