Urton, G. (2003). Signs of the Inka Khipu: Binary coding in the Andean knotted-string records. University of Texas Press.
Chicago-Zitierstil (17. Ausg.)Urton, Gary. Signs of the Inka Khipu: Binary Coding in the Andean Knotted-string Records. Austin: University of Texas Press, 2003.
MLA-Zitierstil (9. Ausg.)Urton, Gary. Signs of the Inka Khipu: Binary Coding in the Andean Knotted-string Records. University of Texas Press, 2003.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.