Cutlip, Scott M. Effective public relations / Scott M. Cutlip, Allen H. Center and Glen M. Broom. - 7th ed. - London : Prentice-Hall, c1994. - xvi, 560 p. : ill. ; 24 cm. Includes index. Includes bibliographical references. ISBN: 0132455234 (pbk.) Subjects--Topical Terms: Public relations.