Frey, Donnalyn. <br/><br/>
A directory of electronic mail addressing & networks / 
 Directory of electronic mail addressing & networks 
Donnalyn Frey and Rick Adams. 
 - 4th ed. 
 - Sebastopol, CA :  O'Reilly & Associates,  c1994. 
 - xix, 640 p. ;  24 cm. 
 - A Nutshell handbook .
<br/><br/> On cover: UNIX communications.  Includes index. 
<br/><br/><label>ISBN: </label>1565920465 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Electronic mail systems--Directories.<br/>Computer networks--Directories.