A superb collection of several long shorts from the one and only Richard Cowper, whose output, sadly, diminished in the 90s and is non-existent nowadays, but whose inventory of quality science fiction material published in the 60s, 70s and 80s is very impressive, indeed.
Used availability for Richard Cowper's The Tithonian Factor
April 1984 : UK Hardback
September 2012 : USA, Canada Kindle edition
September 2012 : UK Kindle edition
Title: The Tithonian Factor
Author(s): Richard Cowper
Availability: Amazon UK