TY  - BOOK
AU  - Checkland,Peter
AU  - Scholes,Jim
TI  - Soft Systems methodology in action: : includes a 30-year retrospective / 
SN  - 0471986054
U1  - 003 
PY  - 1999///.
CY  - New York : 
PB  - John Wiley and Sons, LTD, 
KW  - System theory.
KW  - System analysis.
ER  -