Lee, Vincent R. <br/><br/>
Choquequirao to Machu Picchu at the speed of light :   visual signaling among the Incas. 

 - California-XXU :   Institute of Andean Studies,   2010. 
 - p. 1-23 :   il. 
 - Irregular 
 - vol. 30, no. 1(Jun. 2010) 
 - Ñawpa pacha. Journal  of Andean Archaeology ;   vol. 30, no. 1 .
 - Estados Unidos .   Institute of Andean Studies,. .
<br/><br/><br/>Inglés.