Frey, Donnalyn. <br/><br/>
!%@:: a directory of electronic mail addressing & networks  [[Book] /] 
 Directory of electronic mail addressing & networks. 
Donnalyn Frey and Rick Adams. 
 - 4th.ed. 
 - Sebastopol, CA :  O'Reilly & Associates,  1994. 
 - 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.
<br/><br/><label>Dewey Class. No.: </label>004.692029 
<br/><br/><label>National Library of Medicine Call No.: </label> / F D