Freund, John E. Modern elementary statistics / John E. Freund. - 5th ed. - Upper Saddle River, N.J.: Prentice Hall, 1979. - xiii, 510 p. : ill. (some col.) ; 25 cm. + 1 computer disk (3 1/2 in.) Includes bibliographical references and index. ISBN: 0130177016 LCCN: 00029792 Subjects--Topical Terms: Statistics LC Class. No.: QA276.12 Dewey Class. No.: 519.5