Corey, G. (1996). Theory and practice of counselling and psychotherapy (5th.ed.). Brooks/Cole.
Lua i Stíl Chicago (17ú heag.)Corey, Gerald. Theory and Practice of Counselling and Psychotherapy. 5th.ed. Pacific Grove: Brooks/Cole, 1996.
Lua MLA (9ú heag.)Corey, Gerald. Theory and Practice of Counselling and Psychotherapy. 5th.ed. Brooks/Cole, 1996.
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