TY  - GEN
AU  - Shklarsky DO
AU  - Sussman Irving
TI  - The USSR Olympiad problem book : : selected problems and theorems of elementary mathematics 
SN  - 0486277097
AV  - QA43  
U1  -  510/.76 
PY  - 1994///
CY  - New York : 
PB  - Dover, 
KW  - Mathematics
KW  - Problems exercises etc
ER  -