TY  - BOOK
AU  - Straszewicz, S.
TI  - Mathematical problems and puzzles: from the Polish mathematical olympiads 
T2  - Popular lectures in mathematics
AV  - QA43 .S8183
U1  - 512.9 
PY  - 1965///
CY  - Oxford, New York
PB  - Pergamon Press
KW  - Mathematics
KW  - Problems, exercises, etc
N1  - Translation of Zadania z olimpiad matematycznych
ER  -