Adamson, Thomas A., <br/><br/>
Electronic communications / 
Thomas A. Adamson. 
 - 2nd ed. 
 - Albany, N.Y. :  Delmar Publishers,  c1992. 
 - xv, 743 p. :  24 cm. 
<br/><br/><label>ISBN: </label>0827350848 9780827350847 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Telecommunication.
<br/><br/><label>Dewey Class. No.: </label>621.382  / ADA