Hughes, Ann J. Linear programming : an emphasis on decision making / Ann J. Hughes and Dennis E. Grawiog - Massachusetts : Addison-wesley, c1973. - xv,141 p. : ill. ; 23 cm. ISBN: LCCN: Subjects--Topical Terms: Linear programming LC Class. No.: T57.74 / .H33 1973 Dewey Class. No.: 519.72 / H892l