author : Duncan Steel

Books

• Target Earth. 2000
• Marking Time. 2000

Short works

• The Thirty-Three Year English Protestant Calendar. 2000. (In The Greatest Inventions of the Past 2000 Years )

Books : reviews

Duncan Steel.
Target Earth: how rogue asteroids and doomsday comets threaten our planet.
Time Life. 2000

Duncan Steel.
Marking Time: the epic quest to invent the perfect calendar.
Wiley. 2000