TY  - BOOK
AU  - Shelly, G.
AU  - Harry, R.
TI  - Systems analysis and designs
SN  - 9781439037874
AV  - QA402.S4 2010 
PY  - 2010///
CY  - Australia
PB  - Cengage learning.
KW  - System analysis
KW  - Network theory
ER  -