TY  - BOOK
AU  - Gupta,P.K
AU  - Mohan,Man
TI  - Problems in operations research: methods and solutions 
U1  - 003 22
PY  - 1995///
CY  - New Delhi
PB  - Sultan chand Pub. Co.
KW  - Operations research
N1  - Includes bibliographical references and indexes
ER  -