Burton,  A. Jonh <br/><br/>
Owls of the world; their evolution structure and ecology 

 - London  Peter Lowe  1973 
 - 216p.  28cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Owls
<br/><br/><label>LC Class. No.: </label>Ql696.S809