TY  - BOOK
AU  - Lejk,Mark
AU  - Deeks,David
TI  - An introduction to systems analysis techniques
SN  - 0138577641 
AV  - QA402 .L45 1998
PY  - 1998///
CY  - New York
PB  - Prentice Hall
KW  - System analysis
N1  - Includes index
ER  -