Cutlip, Scott M. Effective public relations / Scott M. Cutlip, Allen H. Center, Glen M. Broom. - 6th ed. - Englewood Cliffs, N.J. : Prentice-Hall International, 1985. - xviii, 670 p. : ill. Includes bibliographical references and index ISBN: 0132450933 Subjects--Topical Terms: Public relations.