TY  - GEN
AU  - Trevelyan, John M. A.
AU  - Morley, John.
AU  - Harman HA
TI  - Everyone's arithmetic
AV  - QA107 
PY  - 1945///
CY  - London
PB  - Longmans
KW  - Arithmetic
N1  - Earlier edition has title: Functional arithmetic through citizenship; Includes index(p.450-456)
ER  -