00465nam a2200157Ia 4500008004100000020001500041082001700056100002200073245009200095260003400187300000800221650001600229650001800245653002300263653002100286170901s1976    xx            000 0 und d  a0070393737  a519.72bM15E  aMachol, Robert E. 0aElementary Systems MathematicsbLinear Programming for Business and the Social Sciences  aTokyobMcGraw-Hill Ltd.c1976  a267  aMathematics  aPure Sciences  aLinear programming  aSystems analysis