Harris J. Carkhuff, Robert R. (1969). <i>Helping and Human Relations: A Primer for Lay and Professional Helpers.</i> (Volume 1). Can J Couns Psychother [Internet]. 2012 Apr. 8 [cited 2024 Nov. 26];5(1). Available from: https://cjc-rcc.ucalgary.ca/article/view/60737