Walter, Otis M. Thinking and speaking; a guide to intelligent oral communication / [by] Otis M. Walter and Robert L. Scott. - 2a ed. - New York : Macmillan, 1968. - ix, 256 p. illus. 24 cm. Bibliographical footnotes. LCCN: 68010185 Subjects--Topical Terms: Public speaking.Oral communication. LC Class. No.: PN 4121 / W233t 1968 Dewey Class. No.: 808.5