Electronic communications  a step-by-step introduction 
Heathkit/Zenith Educational Systems 
 - Englewood Cliffs, N.J.  Prentice-Hall  1983 
 - 251p. ill. 24cm 
<br/><br/> 'Spectrum book.'  Reproduces the text of the ed. published: Benton Harbor, Mich. : Heath Co., c1981; unit objectives and self-reviews omitted 
<br/><br/>Includes index 
<br/><br/><label>LCCN: </label>82-23158 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Radio