Pettingill, Sewan Olin <br/><br/>
Ornithology in labaratory and field / 
Olin Sewall Pettingill 
 - 5th ed. 
 - New York :  Academic press,  1985 
 - 403 p.:  ill.; 
<br/><br/> Includes index. 
<br/><br/><label>ISBN: </label>0125524552 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Ornithology 
<br/><br/><label>LC Class. No.: </label>QL677.5 .P4 1985