Axelson,Jan <br/><br/>
Serial port complete:programming & circuit for RS-232 & RS-485 links & network 

 - Vidhyanagar  Penram   1998 
<br/><br/><label>ISBN: </label>81-87972-03-3 
<br/><br/><label>Dewey Class. No.: </label>4.22  / AXE