TY  - BOOK
AU  - Lines, Malcolm E.,
TI  - Think of a number: Ideas, concepts, and problems wich challenge the mind and baffle the experts 
SN  - 0852741839
AV  - QA93 L55
PY  - 1990///
CY  - Bristol
PB  - A. Hilger
KW  - Matemáticas
KW  - Obras de divulgación
ER  -