Buckland, S.T. <br/><br/>
Distance sampling :  estimating abundance of biological populations / 
S. T. Buckland ... (et al.) 
 - London :  Chapman & Hall,  1993 
 - xii , 446 p. :  ill. ;  24 cm. 
<br/><br/>includes bibliographical references and indexes 
<br/><br/><label>ISBN: </label>0412426609 0412426706 (pbk.) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Animal populations--Statistical methods<br/>Sampling (Statistics)