Parker, Bertha Morris. <br/><br/>
Plant and animal partnership 
by Bertha Morris Parker ; illustrations by Arnold W. Ryan. 
 - 1953 ed. 
 - Evanston, Ill.  Row, Peterson  1953, c1944. 
 - 35 p.  ill.  23 cm. 
 - The Basic science education series .
<br/><br/> "Intermediate."  Row-Peterson unitext. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Science--Study and teaching (Elementary)