Acker, David D. Skill in communication a vital element in effective management David D. Acker. - 2nd ed. - Fort Belvoir, Va. Defense Management Systems College 1992. - xii, 128 p. ill. 23 cm. Includes bibliographical references. ISBN: 4.50 LCCN: doc92000939 Subjects--Topical Terms: Communication in management--United States. GPO Item No.: 306 Gov. Doc. Class. No.: D 1.2:C 73/5/992