Jeffres, Leo W Mass media : processes and effects / Leo W. Jeffres with Richard M. Perloff - Prospect Heights, Ill. : Waveland Press, c1986 - xi, 442 p. : ill. ; 23 cm Includes index ISBN: 0881331929 (pbk.) LCCN: 86164380 Subjects--Topical Terms: Mass media LC Class. No.: P90 / .J345 1986 302.23 / .J345 1986 Dewey Class. No.: 302.23