Lua APA (7ú heag.)

CARKHUFF, R. R., & ANTHONY, W. A. (1979). The skills of helping. Human Resource Development Press.

Lua i Stíl Chicago (17ú heag.)

CARKHUFF, Robert R., agus William A. ANTHONY. The Skills of Helping. Massachusetts: Human Resource Development Press, 1979.

Lua MLA (9ú heag.)

CARKHUFF, Robert R., agus William A. ANTHONY. The Skills of Helping. Human Resource Development Press, 1979.

Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.