Campbell, Joe <br/><br/>
RS-232 solution 
by Joe Campbell 
 - 2nd ed. 
 - New Delhi  BPB  1990 
 - 196p. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Computer interfaces --Standards --United States<br/>Computer interfaces
<br/><br/><label>Dewey Class. No.: </label>I5372 C152t