Heron, John, Co-Counselling Manual for Basic Training Courses
Human Potential Research Project / Department of Adult Education / University of Surrey /Guildford GU2 5XH / England
University of Surrey 1979, revised edition 1998

Heron, John, Catharsis in Human Development
Human Potential Research Project / Department of Adult Education / University of Surrey /Guildford GU2 5XH / England
University of Surrey 1977, revised edition 1998

Heron, John, Co-Counselling Teacher's Manual
British PG Medical Federation
University of London 1977, revised edition 1998

Weitere Englischsprachige Literatur gibt es auf der Seite des Schottischen
Co-Counselling Netzwerks
http://www.co-cornucopia.org.uk
unter 'Literature’.