TY  - GEN
AU  - Gupta,Prem Kumar
AU  - HiraD.S.
TI  - Problems in Operations research: principles and solutions 
SN  - 8121909686.
AV  - T57.6 .H374 1983
U1  - 0034 
PY  - 2005///
CY  - New Delhi
PB  - S. Chand & Company
KW  - Operations research
N1  - Bibliography: p. [122]
ER  -