Leathers, Dale G. Successful nonverbal communication : principles and applications / Dale G. Leathers. - 2nd ed. - New York : Macmillan Publishing, c1992. - xiii, 408 p. : ill. ; 25 cm. Includes bibliographical references and index. ISBN: 0023690259 Subjects--Topical Terms: Nonverbal communication (Psychology). LC Class. No.: BF637 / .L43 1992