TY  - BOOK
AU  - DICKINSON Paul
TI  - Making sense of maths: sorting letters 
SN  - 9781444180084 (pbk.) :
PY  - 2013///
CY  - Abingdon , Oxon
PB  - Hodder Education, 
KW  - FRACTIONS
KW  -  PROBLEMS, EXERCISES, ETC
KW  -  JUVENILE LITERATURE
ER  -