APA (7 ম সংস্করণ) উদ্ধৃতি

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

শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতি

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

M.L.A (9 ম সংস্করণ) উদ্ধৃতি

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