Derfler, Frank J. <br/><br/>
Microcomputer data communication systems / 
Frank J. Derfler, Jr. 
 - Englewood Cliffs, N.J. :  Prentice-Hall,  1982. 
 - ix, 129 p. ;  24 cm. 
 - A spectrum book .
<br/><br/>Includes index 
<br/><br/><label>ISBN: </label>0135807204 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Data transmission systems<br/>Microcomputers