Knapp, Mark L. Nonverbal communication in human interaction / Mark L. Knapp, Judith A. Hall - 4th ed. - Fort Worth, Tex. : Harcourt Brace College Publishers, c1997 - xii, 496 p. ; 24 cm. ISBN: 0030180236 Subjects--Topical Terms: Body language. Dewey Class. No.: 302.222 / KNA