Buckland, S.T& et al <br/><br/>
Advanced distance sampling 

 - Edition 6 
 -  Oxford University  Press  2004 
 - 416 pages 
<br/><br/><label>ISBN: </label>0-19-850783-6 
<br/><br/><label>Dewey Class. No.: </label>B591.7880727ad