Guffey, Mary Ellen. Essentials of business communication Mary Ellen Guffey ; Dana Loewy, contributing editor. - 8 th ed. - Mason, OH South-Western/Cengage Learning c2010. - 1 v. (various pagings) ill. 28 cm. Includes bibliographical references and index. ISBN: 9780324588002 (pkg) 0324588003 (pkg. : pbk.) 9780324587999 0324587996 LCCN: 2008940428 Subjects--Topical Terms: Business writingBusiness communicationEnglish language--Business English. LC Class. No.: HF5718.3 / .G84 2010