Mason, Robert D. Statistical techniques in business and economics / Robert D. Mason [and] Douglas A. Lind - 9th edition - Boston : Irwin McGraw-Hill, [1996] - xix, 871 pages : illustrations ; 26 cm. Includes index. ISBN: 0256139016 Subjects--Topical Terms: Commerical ststisticsEconomics -- Statistical methods.Social sciences -- Statistical methods.