Keen, Martin L. <br/><br/>
The how and why wonder book of magnets and magnetism 

 - New York  ; Wonder Books  , 1969 
 - 47p. 
<br/><br/><label>ISBN: </label> 3.75 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Magnetism<br/>Physics
<br/><br/><label>Dewey Class. No.: </label>538  / KEE