Gschwandtner The art of nonverbal selling : let your customers? unspoken signals lead you to the close / Gerhard Gschwandtner. - New York McGraw-Hill 2007. - xi, 242p. ill. 25cm + 1 CD-ROM (4 3/4in.) Includes bibliography and index p.231 - 240 ISBN: 9780071478625 Subjects--Topical Terms: Body languageSelling--Psychological aspects Dewey Class. No.: 658.85 GSC 2007