Stephens, David W. <br/><br/>
Foraging theory 
David W. Stephens and John R. Krebs 
 - New York   Princeton University Press  1986 
 - xiv,247p.:ill.;  24cm. 
 - Monographs in behavior and ecology .
<br/><br/><label>ISBN: </label>0691084424 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Animals-Food
<br/><br/><label>Dewey Class. No.: </label>591.53 STE