Krebs, J.R <br/><br/>
Behavioural ecology  an evolutionary approach 

 - Oxford  Blackwell  1978 
 - xi,494 p.  Illustration 
<br/><br/><label>ISBN: </label>0632002859 
<br/><br/><label>Subjects--Topical Terms: </label><br/>ZOOLOGY
<br/><br/><label>Dewey Class. No.: </label>591.5  / BEH