TY  - BOOK
AU  - Biggs,Edith Ethel
TI  - Teaching mathematics 7-13: slow learning and able pupils 
SN  - 0700506616
PY  - 1985///
CY  - Windsor, Berkshire
PB  - NFER-Nelson Publishing Company Ltd.
KW  - Mathematics
KW  - Study and teaching (Primary)
ER  -