Cutlip, Scott M. Effective public relations / Scott M. Cutlip, Allen H. Center, Glen M. Broom - 6th ed. - Englewood Cliffs, N.J. : Prentice-Hall, 1985 - 670 p. ; 24 cm. ISBN: 0132450771 LCCN: 84-018006 Subjects--Topical Terms: Public relations