found: His Anxiety, psychological perspectives on panic and agoraphobia, 1984:CIP t.p. (Richard S. Hallam; Royal Nat. Throat, Nose & Ear Hosp., London)
found: Circular relations, 2015:t.p. (Richard Hallam)
found: Collage, 2019:title page (Richard Hallam) rear cover (the author of this collection of images shows what can be achieved without an art-school training)
found: Amazon.co.uk website, viewed 5 Dec. 2019:author profile (Richard Hallam trained as a clinical psychologist and worked for many years in the National Health Service while also engaged in post-graduate teaching. He now practices independently as a psychotherapist. His books include "The therapy relationship" and "Abolishing the concept of mental illness")
found: Polpresa Press publishers website, viewed 8 August 2023:about the authors (Richard Hallam: clinical psychologist; author of David's Box; practices therapy independently and is a Fellow of the British Psychological Society) - https://www.polpresapress.co.uk/about-the-authors/
found: Author's own website, viewed 8 August 2023:publications ('David's Box: The Diaries and Letters of a Young Man Diagnosed as Schizophrenic, 1960-1971'; Richard Hallam and Michael Bender, July 2011; author also cited as Hallam, R.S.) - https://richardhallam.co.uk/