Encyclopedia of international media and communications / Donald H. Johnston, editor-in-chief.
Encyclopedia of politics, the media, and popular culture / Brian Cogan and Tony Kelso.
History of the mass media in the United States : an encyclopedia / edited by Margaret A. Blanchard
Mass communication effects and processes : a comprehensive bibliography, 1950-1975 / Thomas F. Gordon and Mary Ellen Verna.
The mass media : Aspen Institute guide to communication industry trends / Christopher H. Sterling, Timothy R. Haight.
Mass media bibliography : an annotated guide to books and journals for research and reference / Eleanor Blum and Frances Goins Wilhoit.
For other reference books that treat this subject, see page under the "Reference Works" tab.