UNIX time-sharing system :  UNIX programmer's manual / 
Bell Telephone Laboratories. 
 - Rev. & exp. version. 
 - New York :  Holt, Rinehart & Winston,  c1983. 
 - 2 vols. ;  28 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>UNIX (Computer operating system).