Bragg, William . <br/><br/>
The World of Sound /  Textual Documents 
William Bragg. 
 - 1st ed. / 
 - London :  G Bell & Sons ,  1920. 
 - 196p. ;  18cm. 
<br/><br/><label>Subjects--Index Terms: </label>Sound Physics G-Physics 
<br/><br/><label>Dewey Class. No.: </label>534  / B 73 W