Seyer, Martin D. <br/><br/>
RS-232 made easy :  connecting computers, printers, terminals, and modems / 
Martin D. Seyer. 
 - 2nd ed. 
 - Englewood Cliffs, N.J. :  Prentice Hall,  c1991. 
 - xii, 436 p. :  ill. ;  24 cm. 
<br/><br/> Appendices: p. 99-431.  Includes index. 
<br/><br/><label>ISBN: </label>0137498705 (case) 0137498543 (paper) 
<br/><br/><label>LCCN: </label>90026516  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Computer interfaces--Standards--United States.
<br/><br/><label>LC Class. No.: </label>TK7887.5  / .Se1 1991 
<br/><br/><label>Dewey Class. No.: </label>004.6