Sparks, John <br/><br/>
Owls: their natural and unnatural history/ 
John Sparks and Tony Soper. 
 - Newton Abbot:  David & Charles;  1970. 
 - 206 pages.:  illustrations;  23 cm. 
<br/><br/><label>ISBN: </label>9780715349953 
<br/><br/><label>Subjects--Topical Terms: </label>--Owls