TY  - BOOK
AU  - Langfield,S.
AU  - Duddell,Dave
TI  - Computer science for Cambridge international AS & A level
SN  - 9781108733755
U1  - 004.076 
PY  - 2019///
CY  - Cambridge
PB  - Cambridge University Press
KW  - Computer science
KW  - Problems, exercises, etc
KW  - Study and teaching (Secondary)
N1  - Previous edition: 2015; Includes index
ER  -