Cita APA (7th ed.)

Hill, C. E. (2004). Helping skills: Facilitating exploration, insight and action (2nd ed.). Taylor and Francis.

Cita Chicago (17th ed.)

Hill, Clara E. Helping Skills: Facilitating Exploration, Insight and Action. 2nd ed. Washington: Taylor and Francis, 2004.

Cita MLA (8th ed.)

Hill, Clara E. Helping Skills: Facilitating Exploration, Insight and Action. 2nd ed. Taylor and Francis, 2004.