Freund, John E. Modern elementary statistics / John E. Freund - 4th ed. - Englewood Cliffs, N.J. : Prentice-Hall, c1974. - xii, 532 p. : ill. ; ii, 532 p. illus. 25 cm. ISBN: 135933927 LCCN: Subjects--Topical Terms: Statistics LC Class. No.: HA29 / .F685 1974 Dewey Class. No.: 519.5 / F889m