000 00289nam a2200109Ia 4500
008 191031s9999 xx 000 0 und d
100 _aHEADY (Earlo) and CANDLER (Wilfred)
245 0 _aLinear programming methods
260 _b"IOWA state uni press, USA"
260 _c1958
942 _cBK
999 _c214723
_d214723