TY  - BOOK
AU  - Gupta, Rajiv
AU  - Nagrath, I.J.
TI  - Introduction to systems
SN  - 81-224-1599-7
U1  - 003 
PY  - 2005///
CY  - New Delhi
PB  - New Age International
KW  - Hard-System
KW  - Introduction-System
KW  - Social science
N1  - Includes index; SBD
ER  -