Wells, Walter. Communications in business / Walter Wells. - 5th ed. - c1988. - xvi, 632 pages : illustrations; 25 cm. Includes index. ISBN: 0534871674 LCCN: 87022721 Subjects--Topical Terms: Commercial correspondence.Business report writing. LC Class. No.: HF5721 / .W36 1988 Dewey Class. No.: 651.7/4