TY  - BOOK
AU  - Hillier Federick S
AU  -  Lieberman Gerald J
TI  - Introduction to operations reserch
U1  - B2893, K7;N0/TD3 
PY  - 1989///
CY  - New York
PB  - McGraw-Hill         
KW  - Operational Research
N1  - Bibliography chapterwise
ER  -