000 00293nam a2200121Ia 4500
008 191031s9999 xx 000 0 und d
100 _aDorfman (Robert) etc
245 0 _aLinear programming and economics analysis
260 _bKogakusha
260 _c1958
365 _b56.55
942 _cBK
999 _c203413
_d203413