Freund, John E. Elementary business statistics the modern approach John E. Freund, Frank J. Williams. - 3d ed. - Englewood Cliffs, N.J. Prentice-Hall c1977. - xv, 560 p. graphs 25 cm. Includes index. Bibliography: p. 506-509. ISBN: 0132530627 LCCN: 76053752 Subjects--Topical Terms: Statistics LC Class. No.: HA29 / .F683 1977 Dewey Class. No.: 519.5/02/4658