Murphy, Herta A. Effective business communications Herta A. Murphy, Herbert W. Hildebrandt and; Jane P. Thomas. - 7th ed. - New York McGraw Hill Book [n.d.] - xxii, 617p., 25cm. ISBN: 0-07-11450. Subjects--Topical Terms: Hildebrandt, Herbert W. - Thomas, Jane P. Commercial correspondence ;Bu Dewey Class. No.: 651.7 / M89E