Tham khảo Olivella_biplicata

  • Arnold, J.E. and A.P. Graesch. 2001. The Evolution of Specialized Shellworking Among the Island Chumash. In The Origins of a Pacific Coast Chiefdom: the Chumash of the Channel Islands, edited by J.E. Arnold, pp. 71–112. Salt Lake City: University of Utah Press.
  • Bennyhoff, James A. and Richard E. Hughes. 1987. Shell Bead and Ornament Exchange Networks between California and the Western Great Basin. Anthropological Papers of the American Museum of Natural History 64:79-175.
  • Fitzgerald, Richard T., Terry L. Jones, and Adele Schroth. 2005. Ancient Long Distance Trade in Western North America: New AMS Radiocarbon Dates from Southern California. Journal of Archaeological Science 32:423-434.

Tài liệu tham khảo

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