Spratt H G M <br/><br/>
Magnetic tape recording 

 -  1958 
 - p.  cm. 
<br/><br/><label>Standard No.: </label>37170 
<br/><br/><label>Source: </label> Textual 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Sound
<br/><br/><label>Dewey Class. No.: </label>C30D, J81