TY  - BOOK
AU  - Rothery Brian
AU  - Rothery Brian
TI  - The act of systems Analysis
SN  - 0 220 99212 6
U1  - 658.403 
PY  - 1969///
CY  - London.
PB  - Business Books ltd.
KW  - The Art of Systems Anslysis
N1  - Include appendix,index
ER  -