| Year |
Author |
Title |
Pages |
| 1969 |
Ascher, Marcia and Robert Ascher. |
Code of ancient Peruvian knotted cords (Quipus). Nature 222(5193):529-533. |
Text: 531 |
| 1925 |
Karpinski, Louis Charles. |
The history of arithmetic. Rand McNally. |
Figures: 33 |
| 1923 |
Locke, L. Leland. |
The Ancient Quipu or Peruvian Knot Record. American Museum of Natural History, New York. |
Text: 8; 23; Figures: pl.VII; pl.VIII |
| 1928 |
Locke, L. Leland. |
Supplementary notes on the quipus in the American Museum of Natural History. The American Museum of Natural History, New York. |
Text: 41; 54-56 |
| 1970 |
Mackey, Carol. |
Knot Records in Ancient and Modern Peru. PhD dissertation, Anthropology, University of California, Berkeley. |
Text: 211 |
| 2020 |
Pancorvo Salicetti, Anel, (editor). Quipus y quipucamayoc: Codificación y administración en el antiguo Perú. Apus Graph Ediciones, Lima. |
Salicetti, Anel, (editor). Quipus y quipucamayoc: Codificación y administración en el antiguo Perú. Apus Graph Ediciones, Lima. |
Text: 382; Figures: 383 |
| 1976 |
Radicati di Primeglio, Carlos. |
El sistema contable de los Incas: Yupana y Quipu. In Estudios sobre los quipus, edited by Gary Urton, pp. 265-354. Universidad Nacional Mayor de San Marcos, Lima. |
Text: 349 |
| 1914 |
Richardson, Ernest Cushing. |
The Beginnings of Libraries. Princeton University Press, Princeton. |
Figures: frontispiece (top left) |
| 2003 |
Urton, Gary. |
Signs of the Inka Khipu: Binary Coding in the Andean Knotted-String Records. University of Texas Press, Austin. http://www.jstor.org/stable/10.7560/785397 |
Figures: cover; fig.1.1 (p.2) |