TY  - BOOK
AU  - Sealey,L.G.W.
AU  - Gibbon,Vivian
ED  - Blackwell 
TI  - [Beginning mathematics]: [working with numbers]
U1  - 372.7044 23
PY  - 1964///.
CY  - Oxford: 
PB  - Blackwell, 
KW  - Mathematics
KW  - Study and teaching (Primary)
ER  -