TY  - BOOK
AU  - Bills,Chris
TI  - Eight days a week: puzzles, problems and questions to activate the mind 
SN  - 1898611092
PY  - 2001///
CY  - Derby
PB  - Associatin of Teachers of Mathematics
KW  - Mathematics
KW  - Problems, exercises, etc
KW  - sears
KW  - Study and teaching
ER  -