TY  - BOOK
T1  - Introduction to operations research
A1  - Hillier, Frederick S.
A1  - Lieberman, Gerald J.
LA  - English
PP  - New York
PB  - McGraw-Hill
YR  - 1990
ED  - 5th edition.
UL  - https://tuklas.up.edu.ph/Record/UP-99796217602532888
OP  - 954
CN  - T 57.6 H54 1990
KW  - Operations research.
ER  -