Nimersheim, Jack. <br/><br/>
The first book of modem communications /  [Book]. 
Jack Nimersheim.  
 - 1st ed. 
 - Carmel, Ind., USA :   SAMS,   1991. 
 - xii, 242 p. :   ill. ;   24 cm. 
<br/><br/> Includes index. 
<br/><br/><label>ISBN: </label>0672273403 
<br/><br/><label>LCCN: </label>91061694 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Modems.