TY  - BOOK
TI  - Stage 4 mathematics: A development through activity 
SN  - 0435028340
U1  - 510 STA 
PY  - 1987///
CY  - London, New Delhi
PB  - Heinemann Educational Books
KW  - Mathematics
KW  - Study and teaching (Elementary)
KW  - Problems, exercises, etc
ER  -