Darby, Gene. <br/><br/>
What is a frog / 
Gene Darby. 
 - Chicago :  Benefic Press,  1957. 
 - 48 p. :  ills. ;  20 cm. 
 - The What is it series .
<br/><br/>4  4 
<br/><br/><label>LCCN: </label>58017818  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Frogs.
<br/><br/><label>Dewey Class. No.: </label>597/ D242W