APA (7e ed.) Bronvermelding

Hackney, H., & Cormier, L. S. (2009). The professional counselor: A process guide to helping (6th ed.). Pearson.

Chicago (17e ed.) Bronvermelding

Hackney, Harold, en L. Sherilyn Cormier. The Professional Counselor: A Process Guide to Helping. 6th ed. Upper Saddle River, N.J: Pearson, 2009.

MLA (9e ed.) Bronvermelding

Hackney, Harold, en L. Sherilyn Cormier. The Professional Counselor: A Process Guide to Helping. 6th ed. Pearson, 2009.