ISBN 1555664571 books & textbook
Machu Picchu's Sacred Sisters: Choquequirao and Llactapata: Astronomy, Symbolism, and Sacred Geography in the Inca Heartland
Ziegler, Gary R. Malville, J. McKim
Bower House /2013-11-21 Paperback / 222 Pages
isbn-10: 1555664571 / isbn-13: 9781555664572
