Audio cassette
Published July 1, 1991 by BBC Audiobooks.

Graham Greene: The Human Factor (BBC Radio Collection) (1991, BBC Audiobooks)
Audio cassette
Published July 1, 1991 by BBC Audiobooks.
The Human Factor is an espionage novel by Graham Greene, first published in 1978 and adapted into the 1979 film The Human Factor, directed by Otto Preminger using a screenplay by Tom Stoppard.