Greenewalt, Crawford H. <br/><br/>
Hummingbirds 
/ Crawford H. Greenewalt ; with a foreword by Dean Amadon 
 - Garden City, New York  : Doubleday and Company  , c1960. 
 - 250, xxi p.  : il. retrs. 
<br/><br/> "Published for the American Museum of Natural History." 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Hummingbirds
<br/><br/><label>Dewey Class. No.: </label>REF 598.2 GRE