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Introduction to mass communications / Warren K. Agee, Phillip H. Ault, Edwin Emery.
New York : Harper & Row, 1988
xvi, 589, [78] p. : ill. ; 24cm.



3
Introduction to mass communications / Warren K. Agee, Phillip H.Ault, Edwin Emery.
New York : HarperCollins, 1991.
xvii, 569 p. : ill. ; 24 cm.



4
Public relations : strategies and tactics / Dennis L. Wilcox, Phillip H. Ault, Warren K. Agee.
New York : Longman, c1998.
xxiv, 584 p. : ill. (some col.) ; 24 cm.