Martin, Edward G. Word Processing with Word Perfect 6.0 for DOS / E.G. Martin, Ch.S. Parker. - Orlando : The Dryden Press, 1994. - 247 p. : fig. ; 28 cm. 231 spreadsheets with Lotus 1-2-3, Release 2.4 - Mastering today's software . Includes index ISBN: 0030006147 Subjects--Topical Terms: Computer software