TY  - BOOK
AU  - Hollands,Roy
TI  - The development of mathematical skills: : a resource book for teachers
SN  - 0631132678
AV  - MATH BF723.N8H6 
PY  - 1983///
CY  - Oxford
PB  - Basil Blackwells Publishers
KW  - Number concept in children
KW  - Mathermatical ability,
KW  - Learning,
KW  - psychology
ER  -