TY  - BOOK
AU  - Goel B S
AU  -  Mittal S K
TI  - Operations research
U1  - B2893, L9;M3/TD3 
PY  - 1985///
CY  - Meerut
PB  - Pragati Prakashan         
KW  - Operational Research
N1  - Appendix at the end of the chapter
ER  -