Topham, Douglas W <br/><br/>
UNIX and XENIX : a step-by-step guide 
by Douglas W Topham and Hai Van Truong 
 - Maryland  Prentice hall  1985 
 - 508p. 
<br/><br/><label>ISBN: </label>0893039187 
<br/><br/><label>Dewey Class. No.: </label>005.43  / N85;3