Parker, Bertha Morris <br/><br/>
Sound / 
by Bertha Morris Parker ; illustrated by William Lackey 
 - Exeter :  Wheaton,  1961 
 - 35 p. ;  22 cm. 
 - The basic science series .
<br/><br/> United Kingdom edition 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Sound--Juvenile literature
<br/><br/><label>Dewey Class. No.: </label>534