TY  - BOOK
AU  - Nagarath, I.J
AU  - Gopal, M
TI  - Systems: modelling and analysis  
SN  - 0-07-451787-2
U1  - 621.392 
PY  - 1982///
CY  - New Delhi
PB  - TMH
KW  - Systems modelling
ER  -