TY  - BOOK
AU  - Bana, Jack.
AU  - Korbosky, Richard.
TI  - Children's knowledge and understanding of basic number facts
SN  - 0728902124
U1  - 372.7042 BAN 
PY  - 1995///
CY  -  Western Australia
PB  - Mathematics, science & Technology Education centre
KW  - Children's knowledge and understanding of basic number facts
ER  -