TY  - BOOK
AU  - Nagrath, I. J.
AU  - Gopal, M.
TI  - Systems Modelling and Analysis 
U1  - 003.3 
PY  - 1982///
CY  - New Delhi : 
PB  - Tata McGraw-Hill, 
KW  - Computer Modelling
N1  - YY
ER  -