Baer, Gerhard. <br/><br/>
Religion and Symbols: a Case in Point from Eastern Peru :   The Matsigenka View of the Religious Dimension of Light. 

 - Buenos Aires-AG :   Centro Argentino de Etnologˇa Americana,   1981. 
 - p. 49-52 
 - Irregular 
 - Vol. VI (1981) 
 - Scripta Ethnológica   .
 - Argentina.   Centro Argentino de Etnologˇa Americana. .