Hvass Hans <br/><br/>
Birds of the world 

 - London  Methuen           1963 
 - 211p.  cm. ill 
<br/><br/><label>Standard No.: </label>55090 
<br/><br/><label>Source: </label> Textual 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Birds
<br/><br/><label>Dewey Class. No.: </label>K96:12.1, K3