  1997 - Mathematics of the Incas Code of the Quipu (Paperback) ISBN-13: 9780486295541 ISBN-10: 0486295540 Genres: History, Nonfiction, Science & Math ?  1981 - Code of the Quipu a Study in Media Mathematics and Culture (Paperback) → Hardcover ISBN-13: 9780472063253 ISBN-10: 0472063251 Genre: History ?  Code of the Quipu a Study in Media Mathematics and Culture (Hardcover) → Paperback ISBN-13: 9780472093250 ISBN-10: 0472093258 Genre: History ? |
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