AT & T. <br/><br/>
UNIX system V release 4 - Programmer's guide  system services and application packaging tools. 

 - Englewood Cliffs  P-H  1990 
 - p.v. 
<br/><br/><label>ISBN: </label>0139470603 
<br/><br/><label>Dewey Class. No.: </label>005.43  / N9012