LEADER 00687nam0-22002411i-450- 001 990002800710403321 035 $a000280071 035 $aFED01000280071 035 $a(Aleph)000280071FED01 035 $a000280071 100 $a20000920d1975----km-y0itay50------ba 101 0 $aENG 200 1 $aManagerial economics and operations research.$fby Mansfield E. 210 $aNew York$cNorton$d1975. 700 1$aMansfield,$bEdwin$f<1930- >$01288 801 0$aIT$bUNINA$gRICA$2UNIMARC 901 $aBK 912 $a990002800710403321 952 $a1-5-123$bTIC 4157$fECA 959 $aECA 996 $aManagerial economics and operations research$9422292 997 $aUNINA DB $aING01