Machu Picchu, a citadel of the Incas
Bingham, Hiram1875-1956.
Yale Peruvian Expedition, 1911.
Peruvian Expeditions, 1912-1915.
New York Hacker Art Books
1979, c1930
"Report of the explorations and excavations made in 1911, 1912, and 1915 under the auspices of Yale University and the National Geographic Society."
: Originally published for the National Geographic Society by Yale University Press, New Haven, which was issued as no. 1 of Memoirs of the National Geographic Society
Includes bibliographical references and index
Incas.