Beasley,Jeffrey S. <br/><br/>
Supplemental Text To accompany Mordern Electronic Comunication 
Jeffrey S.Beasley 
 - 8th Ed. 
 - USA  Pearson  2005 
 - ix,386p.:  Ill.:  27cm. 
<br/><br/><label>ISBN: </label>0536210136 
<br/><br/><label>Dewey Class. No.: </label>510.1/  / BEA