Marshack, Alexander. <br/><br/>
On the "Geological" Explanation of the Berckhat Ram Figurine. 

 - Chicago-US :   Department of Human Sciences,   1995. 
 - p. 495 
 - Trimestral 
 - Vol.36, no. 3 (Jun. 1995) 
 - Current Anthropolgy ;   vol. 36, no. 3 .
 - Estados Unidos.   The University of Chicago Press. .
<br/><br/> Artículo dentro de: Discussion and Criticism. 
<br/><br/><br/>Inglés.