Hilliard, Robert L. creator text Belmont, CA Wadsworth Thomson Learning c2000 7th ed. monographic xiii, 466 pages : Illustrations ; Includes bibliographical references and index. Broadcasting - authorship Mass media - authorship PN 1990.9 HIL 0534561241 http://www.loc.gov/catdir/enhancements/fy1515/99036336-b.html http://www.loc.gov/catdir/enhancements/fy1515/99036336-d.html http://www.loc.gov/catdir/enhancements/fy1515/99036336-t.html http://www.loc.gov/catdir/enhancements/fy1515/99036336-b.html http://www.loc.gov/catdir/enhancements/fy1515/99036336-d.html http://www.loc.gov/catdir/enhancements/fy1515/99036336-t.html