Cita APA (7a ed.)

Hill, C. E. (2020). Helping skills: Facilitating exploration, insight, and action (Fifth edition.). American Psychological Association.

Cita Chicago Style (17a ed.)

Hill, Clara E. Helping Skills: Facilitating Exploration, Insight, and Action. Fifth edition. Washington, DC: American Psychological Association, 2020.

Cita MLA (9a ed.)

Hill, Clara E. Helping Skills: Facilitating Exploration, Insight, and Action. Fifth edition. American Psychological Association, 2020.