TY  - BOOK
AU  - Ball,George W.
ED  - Blackwell Education
TI  - Talking and learning: primary maths for the national curriculum 
SN  - 0631904255
U1  - 510 23
PY  - 1990///.
CY  - Oxford: 
PB  - c Basil Blackwell, 
KW  - Mathematics
N1  - Includes index
ER  -