Wallace, George J. Mahan, Harold D. <br/><br/>
An introduction to ornithology 

 - 3rd ed. 
 - New York  Macmillan pub.  1975 
 - xiv, 546 p. 
<br/><br/> includes index 
<br/><br/><label>ISBN: </label>0-02-423980-1 
<br/><br/><label>Dewey Class. No.: </label>598.2  /  WAL