Cox, W. M., & Klinger, E. (2011). Handbook of motivational counseling: Goal-based approaches to assessment and intervention with addiction and other problems ([2nd ed.].). John Wiley & Sons. https://doi.org/10.1002/9780470979952
Παραπομπή σε μορφή Chicago (17η εκδ.)Cox, W. Miles, και Eric Klinger. Handbook of Motivational Counseling: Goal-based Approaches to Assessment and Intervention with Addiction and Other Problems. [2nd ed.]. Chichester ; Malden, MA: John Wiley & Sons, 2011. https://doi.org/10.1002/9780470979952.
Παραπομπή σε μορφή MLA (8th εκδ.)Cox, W. Miles, και Eric Klinger. Handbook of Motivational Counseling: Goal-based Approaches to Assessment and Intervention with Addiction and Other Problems. [2nd ed.]. John Wiley & Sons, 2011. https://doi.org/10.1002/9780470979952.
