一足歩行
Maya Cosmos: Three Thousand Years on the Shaman's Path. New York: William Morrow & Co.. ISBN 0-688-10081-3. OCLC 27430287
Kunz, Keneva, trans. (2008). The Vinland Sagas: The Icelandic Sagas About the First Documented Voyages Across the North Atlantic. London: Penguin. ISBN 978-0-140-44776-7 Kunz, Keneva, trans. (2008). The Vinland Sagas: The Icelandic Sagas About the First Documented Voyages Across the North Atlantic. London: Penguin. ISBN 978-0-140-44776-7 Kunz, Keneva, trans. (2008). The Vinland Sagas: The Icelandic Sagas About the First Documented Voyages Across the North Atlantic. London: Penguin. ISBN 978-0-140-44776-7