Tench,Ralph Exploring public relations / Ralph Tench and Liz Yeomans. - Harlow : FT Prentice Hall, 2006 - xxx, 641 p. : ill. ; 27 cm. Includes index. Includes bibliographical references ISBN: 0273688898 (pbk ) Subjects--Topical Terms: Public relations. LC Class. No.: HM1221.E97 TEN