Ettlin, Walter A. WordStar made easy / Walter A. Ettlin. - 2nd ed. - Berkeley, Calif. : Osborne/McGraw-Hill, c1982. - ix, 164 p. : ill. ; 24 cm. Includes index. ISBN: 0079310907 LCCN: 83104546 Subjects--Uniform Titles: WordStar (Computer file) LC Class. No.: HF5548.115 / .E87 1982 Dewey Class. No.: 005.13