Shingler, Martin. <br/><br/>
On air :  methods and meanings of radio / 
Martin Shingler and Cindy Wieringa. 
 - London :  Arnold,  1998. 
 - xv, 174 p. ;  24 cm. 
<br/><br/> Includes index. 
<br/><br/>Includes bibliographical references. 
<br/><br/><label>ISBN: </label>0340652314 (pbk.) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Radio broadcasting--History.