Part 1: The Secret of the Peruvian Quipus. Part 2: Calculations with Years and Months in the Peruvian Quipus Erland Nordenskiöld Published: 1925 Total Pages: Get eBook
The Ancient Quipu Or Peruvian Knot Record Leslie Leland Locke Published: 1923 Total Pages: 224 Get eBook
Comparative Ethnographical Studies: pt. 1. The secret of the Peruvian quipus. pt. 2. Calculations with years and months in the Peruvian quipus Erland Nordenskiöld Published: 1925 Total Pages: Get eBook
Supplementary Notes on the Quipus in the American Museum of Natural History Leslie Leland Locke Published: 1928 Total Pages: 46 Get eBook
