APA-ийн эшлэл(7 дахь хэвлэлт)

Urton, G. (2003). Signs of the Inka Khipu: Binary coding in the Andean knotted-string records. University of Texas Press.

Чикаго-гийн эшлэл (17 дахь хэвлэлт)

Urton, Gary. Signs of the Inka Khipu: Binary Coding in the Andean Knotted-string Records. Austin: University of Texas Press, 2003.

MLA -ийн эшлэл (9 дэх хэвлэлт)

Urton, Gary. Signs of the Inka Khipu: Binary Coding in the Andean Knotted-string Records. University of Texas Press, 2003.