Urton,, Gary,, 1946- Signs of the Inka Khipu : binary coding in the Andean knotted-string records / Gary Urton

Signs of the Inka Khipu : binary coding in the Andean knotted-string records / Gary Urton . - Austin : University of Texas Press, imp. 2005 . - XI, 202 p. : il. 23 cm . - (The Linda Schele series in Maya and pre-Columbian studies)
0-292-78540-2 Brochado

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