Hachten, William A. The world news prism : changing media of international communication / by William A. Hachten ; with the collaboration of Harva Hachten. - 3rd ed. - Ames, Iowa : Iowa State University Press, 1992. - xx, 220 p. 22 cm. Includes bibliographical references and index. ISBN: 0813815770 Subjects--Topical Terms: Foreign news.Communication, International.Journalism--Political aspects