Munch, Theodore W. <br/><br/>
What is light : 
Theodore W Munch ; Pictured by Gregory Orloff. 
 - Chicago :  Benefic Press,  1962. 
 - 47 p. :  ills. ;  21 cm. 
 - The What is it series. .
<br/><br/>323  323 
<br/><br/><label>LCCN: </label>60006588  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Readers--Science.
<br/><br/><label>Dewey Class. No.: </label>535 / M921w