Mason, Robert Deward Statictical techniques in business and economics / Robert Deward Mason and Douglas A. Lind - 9th ed. - Chicago : Irwin, c1996. - xix, 587 p. : ill. ; 24 cm. ISBN: LCCN: Subjects--Topical Terms: Social scienceStatistical methodsEconomics LC Class. No.: M411s / . 1996 Dewey Class. No.: 519.5