Count down :
Olson, Steve, 1956-,
Count down : six kids vie for glory at the world's toughest math competition / Steve Olson - 244 páginas
0618251413
International Mathematical Olympiad
Matemáticas--Competencias
QA20.3 / O57
510/.79
Count down : six kids vie for glory at the world's toughest math competition / Steve Olson - 244 páginas
0618251413
International Mathematical Olympiad
Matemáticas--Competencias
QA20.3 / O57
510/.79