Thanks to John Cunningham for this list...
Aczel, Tamas (ed.) Ten Years After: The Hungarian Revolution in the Perspective of History. New York: Holt, Rinehart and Winston, 1966.
Bekes, Csaba, et al. (eds.) The 1965 Hungarian Revolution: A History in Documents. Budapest: CEU Press, 2002.
Cox, Terry (ed.) Hungary 1956 – Forty Years On. London: Frank Cass, 1997.
Dent, Bob. Budapest 1956: Locations of Drama. Budapest: Könyvkiad, 2006.
Litvan, György, The Hungarian Revolution of 1956: Reform, Revolt and Repression 1953-1963. London: Longman, 1996.
Lomax, Bill. ‘Twenty Five Years After 1956: The Heritage of the Hungarian Revolution’ in The Socialist Register, 1982. (79-104). Available online.
---------. Hungary 1956. London: Allison & Busby, 1976
Nagy, Balázs. How the Budapest Central Workers’ Council was set Up. Liverpool: Living History Library, 2006.
Sebestyen, Victor. Twelve Days: Revolution 1956. London: Weidenfield & Nicholson, 2016.
Unwin, Peter. 1956: Power Defied. London: Michael Russell, 2016.