Ehninger, Douglas, Gronbeck, Bruce E., Ray E.McKerrow and Alan H. Monroe Principles and Tyres of speech communication. By Douglas Ehninger, Bruce E. Gronbeck, Ray E. McKerrow and Alan H. Monroe - London: Scott, Foresman and co, 1986. - xvii, 446 p.: ISBN: 0673181561 Subjects--Personal Names: Bruce E. Gronbeck. Subjects--Topical Terms: Public speaking. LC Class. No.: PN4121 / PRI1986