Cite

    Khalidi, L., Gratuze, B., Stein, G., McMahon, A., Al-Quntar, S., Carter, R., Cuttler, R., Drechsler, P., Healey, E., Inizan, M., Mouralis, D., Pernicka, E., & Robin, A. (2016). the growth of early social networks: New geochemical results of obsidian from the Ubaid to Chalcolithic Period in Syria, Iraq and the Gulf. Journal of archaeological science, 9, 743–757. http://access.bl.uk/ark:/81055/vdc_100069727438.0x000001