Shklarsky DO The USSR Olympiad problem book : selected problems and theorems of elementary mathematics / D.O. Shklarsky, N.N. Chentzov, I.M. Yaglom ; translated by John Maykovich. - 3rd ed - New York : Dover, 1994. - xvi, 452 p. : ill. ; 22 cm ISBN: 0486277097 Subjects--Topical Terms: Mathematics--Problems exercises etc LC Class. No.: QA43 Dewey Class. No.: 510/.76