Smith, Jerry D., <br/><br/>
X a guide for users / 
Jerry D. Smith. 
 - xiv, 339 pages:  illustrations ;  23 cm. 
<br/><br/>Includes bibliographical references and index. 
<br/><br/><label>ISBN: </label>9780131332089  Hadiah 
<br/><br/><label>Subjects--Uniform Titles: </label><br/>UNIX (Computer file).
<br/><br/><label>Subjects--Topical Terms: </label><br/>Operating systems (Computers).