TY  - BOOK
AU  -  Walker, Eric 
TI  - Mathematics level 1
SN  - 0039103145
AV  - TJ 1165 .W35 1981 
PY  - 1981///
CY  -  London : 
PB  - Holt, Rinehart and Winston, 
KW  - Shop mathematics
N1  - Includes index
ER  -