TY  - BOOK
AU  - Leigh,David
AU  - Hatter, David.
AU  - Newton, Roy.
TI  - Software: design, implementation and support 
T2  - The computer studies series
SN  - 094882560X
AV  - QA76.6  .L44 1987
PY  - 1987///
CY  - London
PB  - Paradigm Publishing Limited
KW  - Computer programs
ER  -