Morris, Brian. <br/><br/>
Ellen, Roy. The categorical impulse :   Essays in the anthropology of classifying behaviour. xiv, 233 pp., illus., figs, tables, bibliogr. Oxford, New York: Berghahn Books, 2006.  

 - London-ENK :   Board,   2007. 
 - p. 1037-1039 
 - Trimestral 
 - Vol. 13, no. 4 (Dec. 2007) 
 - Journal of the Royal Antropological Institute. Incorporating Man ;   no. 4 .
 - Inglaterra.   Royal Antropological Institute. .
<br/><br/> Book reviewes.  General. 
<br/><br/><br/>Art¡culo en inglés.