Introduction to UNIX / 
Wrightson, Kate and Joe Merlino. 
 - New York :  The McGraw-Hill Companies, Inc.,  c2003 
 - xiii,407 pages :  ill.som.col.;  24cm.  Includes bibliographic references and indexes. 
<br/><br/><label>ISBN: </label>0 07 28620 2 
<br/><br/><label>Subjects--Personal Names: </label>--UNIX (Computer file).
<br/><br/><label>Dewey Class. No.: </label>005.43 WRI