TY  - BOOK
AU  - Roy, Walter  .
TI  - New examination system-GCSE / 
SN  - 0-7099-4217-6
U1  - T2:5,5 
PY  - 1986///
CY  - London : 
PB  - Croom Helm , 
KW  - General Certificate of Secondary Education
ER  -