USSR olympiad problem book:
Shklarsky, D.O.
USSR olympiad problem book: selected problems and theorems of elementary mathematics - San Francisco Freeman 1962 - xvi, 452p. - (Series of books in mathematics,ed by Rosenbaum and G.Philip Johnson) .
tr.from Russian by John Maykovich and revised and ed by Irving Sussmn
51 / SHK
USSR olympiad problem book: selected problems and theorems of elementary mathematics - San Francisco Freeman 1962 - xvi, 452p. - (Series of books in mathematics,ed by Rosenbaum and G.Philip Johnson) .
tr.from Russian by John Maykovich and revised and ed by Irving Sussmn
51 / SHK