TY  - BOOK
AU  - Haylock,Derek
AU  - Cockburn,Anne
TI  - Understanding mathematics in the lower primary years
SN  - 1-85396-352-6
U1  - 372.7044 HAY 22
PY  - 1997///
CY  - London
PB  - P. Chapman
N1  - Includes bibliographical references (p. 192) and indexes
ER  -