TY  - BOOK
AU  - Gupta, Rajiv
AU  - Nagrath, I. J
TI  - Introduction to systems
SN  - 9788122415995
U1  - 658.502 RAJ 
PY  - 2005///
CY  - New Delhi
PB  - New Age International (P) Limited, Publishers
KW  - Management ---- System theory
ER  -