If you hopped like a frog / 
Schwartz, David M. 
 -  Schwartz, David M.,  1999. 
 - 
<br/><br/>Lex 740 
<br/><br/><br/>in English 
<br/><br/><label>ISBN: </label>9780590098571 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Anatomy, Comparative<br/>Ratio and proportion