3. Values Clarification in Counseling and Psychotherapy: Practical Strategies for Individual and Group Settings Kirschenbaum, Howard. Cary : Oxford University Press, USA, 2013. CP502 Full-text via ProQuest Ebook Central
4. The handbook of person-centred psychotherapy & counselling Houndmills, Basingstoke, Hampshire : Palgrave Macmillan, 2013. CP502
