Cutlip, Scott M. Effective public relations / Scott M. Cutlip, Allen H. Center - 4th ed. - Englewood Cliffs, N.J. : Prentice-Hall, 1971. - 701 p. : ill. ; 24 cm. Includes bibliographies and indexes. ISBN: 0132450275 LCCN: 74-141501 Subjects--Topical Terms: Public relations.