Colledge, Ray. Mastering Counselling Theory. Palgrave master series. New York: Palgrave, 2002. Web. <https://ebookcentral.proquest.com/lib/bilibrary/detail.action?pq-origsite=primo&amp;docID=6418945>.
Nelson-Jones, Richard. Basic Counselling Skills. 4th edition. Thousand Oaks, CA: SAGE Publications, 2015. Print.