Corey, G. (2009). Theory and practice of counseling and psychotherapy (Eighth edition.). Thomson/Brooks/Cole.
Cita Chicago (17th ed.)Corey, Gerald. Theory and Practice of Counseling and Psychotherapy. Eighth edition. Australia ; Belmont, CA: Thomson/Brooks/Cole, 2009.
Cita MLA (8th ed.)Corey, Gerald. Theory and Practice of Counseling and Psychotherapy. Eighth edition. Thomson/Brooks/Cole, 2009.
Atenció: Aquestes cites poden no estar 100% correctes.