Freeman, Roger L. <br/><br/>
Practical data communications / 
Roger L. Freeman. 
 - New York :  John Wiley,  c1995, 2001 
 - xxxi, 825 p. :  il. ;  24 cm 
 - (Wiley series in telecommmunications and signal procssing) .
<br/><br/><label>ISBN: </label>0471393029   B/.5.00 
<br/><br/><label>Subjects--Topical Terms: </label><br/>SISTEMAS DE TRANSMISION DE DATOS
<br/><br/><label>Dewey Class. No.: </label>004.6  / F887f