TY  - BOOK
AU  - Gupta, Prem Kumar
TI  - Problems in operation research: Principles and solutions
U1  - 658.4034 G959P(3) 
PY  - 1991///
CY  - New Delhi
PB  - S Chand
N1  - 2872 23/08/2013 HBD13/5524 22/11/2013 Main Budget
ER  -