TY  - GEN
AU  -  Leadbetter, Chris
AU  -  Stewart Wainwright.
TI  - Computer studies and information technology: IGCSE and O level 
SN  - 9780521545402
AV  - QA75.5 LEA 2005 
PY  - 2004///
CY  - London
PB  - Cambridge university press.
KW  - Information technology.
KW  - Information technology -- Examinations -- Study guides
KW  - Computers.
N1  - lncludes index
ER  -