Freund, John E. Elementary business statistics : the modern approach / John E. Freund, Frank J. Williams, Benjamin M. Perles .- 6th ed. - 6e - New Jersey : Prentice Hall, 1993 - xviii, 953 p. : ill. ; 23 cm. ISBN: 0132529580 Subjects--Topical Terms: Commercial Statistics Dewey Class. No.: 519.50246 FRE