Text ( visual ) : unmediated Media debates : great issues for the digital age / Everette E. Dennis, John C. Merrill. -- 4th ed. -- Belmont, CA : Wadsworth/Thomson Learning , c2006. -- xvii, 245 p. ; 24 cm. -- Includes bibliographical references and index. -- ISBN 0495001813 ; (BA72047138) ; https://ci.nii.ac.jp/ncid/BA72047138 Author Heading(s): Dennis, Everette E. ; Merrill, John Calhoun. -- Classification(s): LCC : P92.U5 ; DC21 : 302.23/0973. -- Subject Heading(s): LCSH : Mass media -- United States ; LCSH : Journalism -- United States