TY  - BOOK
AU  - Athey Thomas H.
TI  - Systematic systems approach :  An integrated method   
U1  - X:8:(B2893), M2 
PY  - 1982///
CY  - New Jersey 
PB  - Prentice Hall        
KW  - Operational Management
N1  - Previously published as Structural Systems Approach
ER  -