Ludlow, Ron. The essence of effective communication / Ron Ludlow, Fergus Panton. - New York : Prentice Hall, 1992. - vi, 156 p. : ill. ; 23 cm. - The essence of management series . ISBN: 0132848783 Subjects--Topical Terms: Business communication.Communication in management. LC Class. No.: HF5718 / .L83 1992 Dewey Class. No.: 658.4/5