Citazione Stile APA (7a Edizione)

Sperry, L., & Lewis, J. A. (2005). Health promotion and health counseling: Effective counseling and psychotherapeutic strategies (2nd ed.). Pearson/Allyn and Bacon.

Citazione stile Chigago Style (17a edizione)

Sperry, Len, e Judith A. Lewis. Health Promotion and Health Counseling: Effective Counseling and Psychotherapeutic Strategies. 2nd ed. Boston: Pearson/Allyn and Bacon, 2005.

Citatione MLA (9a ed.)

Sperry, Len, e Judith A. Lewis. Health Promotion and Health Counseling: Effective Counseling and Psychotherapeutic Strategies. 2nd ed. Pearson/Allyn and Bacon, 2005.