TY  - BOOK
AU  - Kenneth Charles Bonnaud; Schools Council (Great Britain). Project in Secondary School Mathematics
TI  - Number appreciation
T2  - Mathematics for the Majority-V.3
SN  - 0701004843
U1  - 510.7 M426m 
PY  - 1971///
CY  - London
PB  -  Chatto and Windus for the Schools Council
KW  -   Numeration.
KW  - Number systems Secondary school texts
ER  -