TY - JOUR TI - How khipus indicated labour contributions in an Andean village: An explanation of colour banding, seriation and ethnocategories JF - Journal of Material Culture AU - Hyland, Sabine DO - 10.1177/1359183516662677 PY - 2016 EP - 509 SP - 490 SN - 1359-1835 SN - 1460-3586 IS - 4 VL - 21 ER -