Crowson, R. A.  <br/><br/>
Classification and biology /  
R. A. Crowson. 
 - London :   Heinemann Educational,   1970. 
 - 350 p. 
<br/><br/><label>ISBN: </label>0435629840 
<br/><br/><label>LCCN: </label>72483529  
<br/><br/><label>Nat. Bib. No.: </label>B70-07601 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Taxonomia.
<br/><br/><label>Dewey Class. No.: </label>574.012