Routledge (Firm). Counseling outcome research and evaluation. Sage Publications.
Lua i Stíl Chicago (17ú heag.)Routledge (Firm). Counseling Outcome Research and Evaluation. Thousand Oaks, CA: Sage Publications.
Lua MLA (9ú heag.)Routledge (Firm). Counseling Outcome Research and Evaluation. Sage Publications.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.