Geary, Robert Charles, 1896- Elements of linear programming with economic applications / R. C. Geary and J. E. Spencer - 2nd edition - London : Charles Griffin & Company, 1973 - 138 p. : ill. ; 22 cm. - Griffin's statistical monographs and courses ; no.15 . ISBN: 0852642164 Subjects--Topical Terms: Linear programmingEconomics, Mathematical