Schwartz, David <br/><br/>
If you hopped like a frog / 
by David M. Schwartz ; illustrated by James Warhola. 
 - 1st ed. 
 - New York :  Scholastic Press,  1999. 
 - unp. 
<br/><br/><label>ISBN: </label>0590098578 
<br/><br/><label>LCCN: </label>9846546 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Ratio and proportion.<br/>Anatomy, comparative.