Shull, A Franklin, et al. <br/><br/>
Principles of animal biology 

 - 4 
 -  McGraw-Hill Book Company, New York  1934 
 - 400 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Zoology
<br/><br/><label>Dewey Class. No.: </label>591  SHU-P4