Corey, G. (2009). Theory and practice of counseling and psychotherapy (Eighth edition.). Thomson/Brooks/Cole.
Citazione stile Chigago Style (17a edizione)Corey, Gerald. Theory and Practice of Counseling and Psychotherapy. Eighth edition. Australia ; Belmont, CA: Thomson/Brooks/Cole, 2009.
Citatione MLA (8a ed.)Corey, Gerald. Theory and Practice of Counseling and Psychotherapy. Eighth edition. Thomson/Brooks/Cole, 2009.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.