Wing, Leonard William,  1906- <br/><br/>
Natural history of birds :  a guide to ornithology / 
by Leonard W. Wing 
 - New York :  Ronald Press,  1956. 
 - xi, 539 pages :  illustrations, maps, diagrams, tables ;  24 cm. 
<br/><br/><label>LCCN: </label>56-011291 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Ornithology.