TY  - BOOK
AU  - Laxton, Bob
AU  - Rawlinson, Graham (jt.auth)
TI  - Make it count with number power
U1  - 513.21107 
PY  - 1992///
CY  - Cambridge
PB  - National Extention College
KW  - Counting-Study and teaching
N1  - PB
ER  -