Salem,  W. G. <br/><br/>
Tape recording for fun and profit 

 - Foulsham tab-limited, Slough  1975 
 - vii,222,(ii) 
<br/><br/><label>ISBN: </label>0-7042-0139-9 
<br/><br/><label>Dewey Class. No.: </label>621.389324 Sal