Agee, Warren K Introduction to mass communications / Warren K. Agee, Phillip H. Ault, Edwin Emery. - 6th ed. - New York : Harper & Row, c1979. - xiv, 476 p. : ill. ; 24 cm. Includes bibliographical references and index. ISBN: 0060401729 (Pbk.) Subjects--Topical Terms: Mass media. LC Class. No.: P90 / .A33 1979