TY  - BOOK
AU  - Prem Kumar Gupta
AU  - Hira, D S
TI  - Operations research
SN  - 8121902819
CY  - New Delhi
KW  - Mathematics
KW  - Operations research
N1  - Call no: on the book 519.8 L9;1.Includes bibliographical references and index. Reprint year 1999
ER  -