Routledge (Firm). Counseling outcome research and evaluation. Sage Publications.
Citazione stile Chigago Style (17a edizione)Routledge (Firm). Counseling Outcome Research and Evaluation. Thousand Oaks, CA: Sage Publications.
Citatione MLA (9a ed.)Routledge (Firm). Counseling Outcome Research and Evaluation. Sage Publications.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.