TY  - BOOK
AU  - Yolles, Maurice
TI  - Management systems: A viable approach 
SN  - 0273620185
U1  - 658.403011  
PY  - 1999///
CY  - London
PB  - Pitman Publishing
KW  - System analysis.
KW  - Management.
KW  - Strategic management
ER  -