00000cam a22000004a 4500 UP-1685675941123850239 Buklod 20101113104219.0 aa rb |||1 u| ta 020418s1956 xx r |||| u|eng d DML UPVTC eng PN 4731 S49a Siebert, Frederick Seaton 1902- Four theories of the press the authoriatarian, libertarian, social responsibility, and Soviet communist concepts of what the press should be and do [by] Fred S. Siebert, Theodore Peterson [and] Wilbur Schramm. Urbana University of Illinois Press c1956. 153 p. Illini book IB-15 "Essays, prepared in connection with a study of the social responsibilities of mass communicators, [being conducted], for the Department of teh church and economic Life of the National Council of Churches. Press. Journalism. Communication. FO Monograph UPTAC UPTAC PN 4731 S49a Book