1. BACH, GEORGE R., and ILLING, HANS A.'Historische Perspektive in Gruppenpsychotherapie.'Z. psychosom. Med., Vol. I, 1955.
2.
2. JUNG, C. G.Answer to Job. Trans. R. F. C. Hull. London: Routledge and Kegan Paul, 1954.
3.
3. JUNG, C. G.Spirit and Nature. Papers from the Eranos Yearbooks, 1, Bollingen Series XXX, 1. Trans. R. F. C. Hull. New York: Pantheon Books, 1954; London: Routledge and Kegan Paul, 1955.
4.
4. JUNG, C. G., KERENYI, K., and RADIN, P.Der Gittliche Schelm. Zurich: Rhein-Verlag, 1954. Published under the title The Trickster, London: Routledge and Kegan Paul, 1956.