TY  - BOOK
AU  - Zadeh L A
AU  -  Polak E
TI  - System theory
T2  - Inter University electonics series; 8
U1  - X:89M, K9 
PY  - 1969///
CY  - Bombay
PB  - Tata Mcgraw Hill Pub    
KW  - ECONOMICS
ER  -