Hance, Kenneth Gordon, 1903-, Principles of speaking /Kenneth G. Hance, David C. Ralph, Milton J. Wiksell. - third edition. - Belmont, California : Wadsworth Pub. Company, (c)1975. - xi, 369 pages : illustrations ; 24 cm. Includes bibliographies and index. LCCN: 74081817 Subjects--Topical Terms: Public speaking. LC Class. No.: PN4121 / .P756 1975 PN4121