TY  - BOOK
AU  - Doyle, Stephen
TI  - Essential GCSE ICT for OCR : teachers guide 
SN  - 978-1-85008-546-1
U1  - 004 DOY 
PY  - 2010///
CY  - New York 
PB  -  Oxford University press
KW  - Data processing and computer science
ER  -