The Mentor: The Incas, vol. 6, num. 3, Serial No. 151, March 15, 1918

The Celestine Prophecy - An Adventure

History of the Conquest of Peru

History of the Conquest of Peru With a Preliminary View of the Civilization of the Incas

Inca Land: Explorations in the Highlands of Peru

The travels of Pedro de Cieza de Léon; part 2