TY  - BOOK
AU  - Riggs, James L.
TI  - Introduction to operations research and management science: a general systems approach
SN  - 0-07-052870-5
PY  - 1975///
CY  - Mc Graw-Hill
PB  - New Delhi
UR  - http://14.139.222.13:80/cgi-bin/koha/opac-detail.pl?biblionumber=6677
ER  -