TY  - BOOK
AU  - Watson, David
AU  - Williams, Helen
TI  - Cambridge IGCSE computer science: Teacher's CD
SN  - 9781471809316
U1  - ER004 
PY  - 2015///
CY  - London 
PB  - Hodder Education
KW  - Computer science
KW  - Electronic data processing
ER  -