Cassel, Paul. Teach yourself Windows 98 in 21 days / Teach yourself Windows 98 in twenty-one days Sams teach yourself Windows 98 in 21 days Paul Cassel, Michael Hart. - Indianapolis, Ind. : Sams Pub., c1998. - xvi, 635 p. : ill. ; 24 cm. Includes index. ISBN: 0672312166 LCCN: 97069118 Subjects--Uniform Titles: Microsoft Windows (Computer file) Subjects--Topical Terms: Operating systems (Computers) LC Class. No.: QA76.76.O63 / C384 1998 Dewey Class. No.: 005.4/469