Yates, Jean. The business guide to the UNIX system/ Jean L. Yates, Sandra L. Emerson. - Reading, Mass : Addison-Wesley Pub. Co., 1984. - xxi, 474 pages : illustrations ; 24 cm. - Micro computer books . Abstracts Includes indexes. Includes bibliographical references and indexes. ISBN: 0201088487 Subjects--Topical Terms: Business--Data processing.UNIX (Computer file).