TY  - BOOK
AU  - Leadbetter, Chris
AU  - Wainwright, Stewart
TI  - IGCSE and O level computer studies and information technology
SN  - 9780521545402
AV  - QA76.L4 2004 
PY  - 2004///
CY  - Cambridge
PB  - Cambridge University Press
KW  - Computer studies
ER  -