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——. 2013. The Handbook of Person-Centred Psychotherapy and Counselling, 2nd ed (Palgrave Macmillan)
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——. 2007b. ‘Leading a Good Life: The Evolving Paradigm from the PCE 2006 Keynote Addresses / Ein Gutes Leben Führen: Das Paradigma, Das Sich in Den Hauptreferaten Der PCE-Konferenz 2006 Abzeichnet / Llevar Una Buena Vida: El Paradigma En Evolución, de Las Presentaciones Principales de La Conferencia PCE Del 2006 / Mener Une "Vie Pleine”: La Notion de Paradigme En Mouvement Qui Émerge Des Conférences Plénières Données Lors de La Conférence PCE 2006 à Potsdam’, Person-Centered & Experiential Psychotherapies, 6.1, pp. 61–71, doi:10.1080/14779757.2007.9688428
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