References Detail back created at: 2018-07-10 Media Type: Article in Journal Authors Blasco Martin, Marta / Mejía Appel, Gabriela Inés / Pérez Roldán, Gilberto Year: 2018 Title: Needles made of human bones from Xochimilco Download: https://www.sciencedirect.com/science/article/pii/S1040618217301477 Volume: 472 Page No: 149-159 JournalQuaternary International Keywords Time Period 1000 - 1500 AD Super Region Meso-America Class of Artefact pin, tool Assemblage Type settlement site Material bone Miscellaneous worked bone back