TY  - BOOK
AU  - Nagrath,I J
AU  - Gopal,M.
TI  - Systems : modeling and analysis
SN  - 0074517872 
U1  - 621.3191 
PY  - 1994///
CY  - New Delhi
PB  - Tata Mcgraw Hill
KW  - Applied physics
ER  -