Betanov, Cemil <br/><br/>
Introduction to X.400 / 
Cemil Betanov 
 - Boston :  Artech house,  c1993 
 - xiv, 388 p. :  ill. ;  24 cm. 
 - Artech House telecommunications library .
<br/><br/>Includes bibliographical references and index 
<br/><br/><label>ISBN: </label>0890065977 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Electronic mail systems.<br/>Computer networks--Standards
<br/><br/><label>Dewey Class. No.: </label>384.34