The USSR Olympiad problem book: selected problems and theorems of elementary mathematics/
Shklarsky, D. O. 1918-1942.
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 / rev. and edited by Irving Sussman - New York: Dover, 1993. - xvi, 452 p.: ill.; 22 cm.
0486277097
93011553 //r932
GB94-39841
Mathematics---Problems, exercises, etc.
510.79 / S558u
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 / rev. and edited by Irving Sussman - New York: Dover, 1993. - xvi, 452 p.: ill.; 22 cm.
0486277097
93011553 //r932
GB94-39841
Mathematics---Problems, exercises, etc.
510.79 / S558u