Parker, Bertha Morris <br/><br/>
Insects, friends and enemies / 
by Bertha Morris Parker and Robert E. Gregg 
 - Exeter :  Wheaton,  1961 
 - 36 p. ;  22 cm. 
 - The basic science series .
<br/><br/><label>Subjects--Topical Terms: </label><br/>Insects--Juvenile literature
<br/><br/><label>Dewey Class. No.: </label>595.7