TY  - BOOK
AU  - Heard,Terry
AU  - Martin,David
AU  - Porkess,Roger
TI  - Pure mathematics 4
SN  - 0340804343 (pbk.)
U1  - 510 
PY  - 2001///
CY  - London
PB  - Hodder & Stoughton
KW  - Mathematics
KW  - Problems, exercises, etc
ER  -