APA (7e ed.) Bronvermelding

Corey, G. (2013). Theory and practice of counseling and psychotherapy (9th ed., Instructor's ed.). Brooks/Cole/Cengage Learning.

Chicago (17e ed.) Bronvermelding

Corey, Gerald. Theory and Practice of Counseling and Psychotherapy. 9th ed., Instructor's ed. Belmont, Calif: Brooks/Cole/Cengage Learning, 2013.

MLA (9e ed.) Bronvermelding

Corey, Gerald. Theory and Practice of Counseling and Psychotherapy. 9th ed., Instructor's ed. Brooks/Cole/Cengage Learning, 2013.