LACK, David <br/><br/>
Ecological Isolation in Birds / 
David Lack ; main illustrations by Robert Gillmor. 
 -- Oxford [etc.] :   Blackwell Scientific Publications,   1971 
 - xi, 404 p.  il. 
<br/><br/>ISBN 0-632-06870-1 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Aves<br/>Pájaros
<br/><br/><label>Universal Decimal Class. No.: </label>598.2:574.9