Pianka ER <br/><br/>
Evolutionary ecology 

<br/><br/><label>ISBN: </label>SL01177420 
<br/><br/><label>Standard No.: </label>195994 
<br/><br/><label>Source: </label> Textbook 
<br/><br/><label>Dewey Class. No.: </label>G:5, P0;3