Title: Combinatorial Problems In Mathematical Competitions
Subjects: Problems, exercises, Combinatorial analysis, U.S.A. Mathematical Olympiad, USA Mathematical Olympiad, U.S.A. Mathematical Olympiad. (uri) http://id.loc.gov/authorities/names/n97055528 (uri) http://viaf.org/viaf/sourceID/LC|n97055528, USA Mathematical Olympiad. (uri) http://id.loc.gov/authorities/names/n97055528 (uri) http://viaf.org/viaf/sourceID/LC|n97055528