Hughes, G. David Demand analysis for marketing decisions / [by] G. David Hughes. - Homewood, Ill. : R. D. Irwin, 1973. - xiii, 306 p. : ill. ; 24 cm. includes index. ISBN: 0256014795 Subjects--Topical Terms: Marketing--Decision making.Supply and demand. Dewey Class. No.: 658.8 / HUD 1973