Leathers, Dale G. Successful nonverbal communication : principles and applications / Dale G. Leathers. - 3rd ed. - Boston : Allyn and Bacon, c1997. - xi, 436 p. : ill. ; 24 cm. Includes bibliographical references and index. ISBN: 0205262309 Subjects--Topical Terms: Nonverbal communication (Psychology). LC Class. No.: BF637 / .L435 1997