00325    a2200121   4500020001500000082001800015100002000033245004700053260003500100300002000135650002400155700002400179  a0824774744  a658.4034bGRI  aGribik, Paul R.  aExtremal methods of operationals research   aNew YorkbMandarinc1985g1985  aviii,313pc24cm  aOperations research  aKortanek, Kenneth O