Vaughan, Ivan (1986). Ivan. London: Macmillan. ISBN0-333-42454-9. OCLC13904860., first published in US in 1987 with title "Ivan: Living with Parkinson’s Disease"
Vaughan, Ivan; BBC Education (1984), Ivan, London: BBC Education & Training, OCLC220771119, retrieved 6 March 2022
Vaughan, Ivan (1986). Ivan. London: Macmillan. ISBN0-333-42454-9. OCLC13904860., first published in US in 1987 with title "Ivan: Living with Parkinson’s Disease"
Vaughan, Ivan; BBC Education (1984), Ivan, London: BBC Education & Training, OCLC220771119, retrieved 6 March 2022