Inventing American broadcasting, 1899-1922 / Susan J. Douglas. Douglas, Susan J. (Susan Jeanne), 1950- Radio broadcasting United States History. Radio United States History. 384.5409 DOU Includes index. Bibliography: p. 323-354. Baltimore : Johns Hopkins University Press, 1987. 1987. 1987 Text xxix, 363 p. : eng Johns Hopkins studies in the history of technology United States United States