Catchpool, Edmund . <br/><br/>
A Text-Book of Sound /  Textual Documents 
Edmund Catchpool. 
 - 1st ed / 
 - London :  University Tutorial Press ,  1921. 
 - 380p ;  20 cm. 
<br/><br/><label>Subjects--Index Terms: </label>Physics T/G-Physics 
<br/><br/><label>Dewey Class. No.: </label>534  / C 281 T