Simpson, George Gaylord  <br/><br/>
Principles of animal taxonomy 

 - New York:   Columbia University Press,   1961 
 - xii, 247p. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Zoology
<br/><br/><label>Subjects--Index Terms: </label>Animals 
<br/><br/><label>Universal Decimal Class. No.: </label>592/599  / K1