TY - BOOK AU - Schramm, Wilbur Lang, AU - Roberts, Donald F. TI - The process and effects of mass communication SN - 0252001974 U1 - 301.16 SCHR PY - 1971///] CY - Urbana PB - University of Illinois Press KW - Mass media N1 - Includes Bibliographical references (p. [967]-979) ER -