Lack, David Lambert <br/><br/>
Ecological isolation in birds / 
David Lack ; main illustrations by Robert Gillmor 
 - Oxford :  Blackwell Scientific Publications,  1971 
 - xi, 404 p. :  ill. ;  23 cm. 
<br/><br/>Bibliography : p. 357-374 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Bird populations<br/>Isolating mechanisms