Blackwelder, Richard E. <br/><br/>
Clasification of the animal kingdom  / 
by Richard E. Blackwelder 
 - Carbondale, Illinois  :   Southern Illinois University Press 
 - 94 p. 
<br/><br/><label>LCCN: </label>204906 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Zoología--Clasificación
<br/><br/><label>Dewey Class. No.: </label>PA 590 B53