Davis, David E.. <br/><br/>
Behaviour as an Ecological Factor /  

 - 1st ed /  
 - Pennsylvania :   Dowden, Hutchingson & Ross, Inc. ,   1998 
 - p.390,xv :  
<br/><br/><label>ISBN: </label>0-87933-132-1 
<br/><br/><label>Dewey Class. No.: </label>SN1,9x  / L4