APA (7th ed.) Citation

Okun, B. F. (1992). Effective helping: Interviewing and counseling techniques (4th ed.). Brooks/Cole Pub. Co.

Chicago Style (17th ed.) Citation

Okun, Barbara F. Effective Helping: Interviewing and Counseling Techniques. 4th ed. Pacific Grove, Calif: Brooks/Cole Pub. Co, 1992.

MLA (9th ed.) Citation

Okun, Barbara F. Effective Helping: Interviewing and Counseling Techniques. 4th ed. Brooks/Cole Pub. Co, 1992.