Keirstead, Phillip O. <br/><br/>
The world of telecommunication : introduction to broadcasting, cable, and new technologies / by Phillip O. Keirstead, Sonya-Kay Keirstead. 

 - Boston, Mass. :  Focal Press,  1990. 
 - 310 p. : ill. 
<br/><br/><label>ISBN: </label>0240800141 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Broadcasting vocational guidance.