Count Down
by Steve Olson
CompetitionsMathematicsConcoursInternational Mathematical OlympiadMathématiquesMathematics, competitionsInternational Mathematical Olympiad. (uri) http://id.loc.gov/authorities/names/n2002160737 (uri) http://viaf.org/viaf/sourceID/LC|n2002160737
Writing a summary for young readers…
For young readers
Book data: Open Library