Sheets, Payson.
Obsidian sources and elemental analyses of aritfacts in southern mesoamerica and the Northern Intermediate Area. - Washington-US : Society for American Archaeology, 1990. - p. 144-158 : il. - Trimestral - Vol. 55, no, 1 (Jan 1990) - American Antiquity ; vol. 55 no. 1 . - Washington. Society for American Archaeology. .
Artículo dentro de: Reports.
Inglés.
Obsidian sources and elemental analyses of aritfacts in southern mesoamerica and the Northern Intermediate Area. - Washington-US : Society for American Archaeology, 1990. - p. 144-158 : il. - Trimestral - Vol. 55, no, 1 (Jan 1990) - American Antiquity ; vol. 55 no. 1 . - Washington. Society for American Archaeology. .
Artículo dentro de: Reports.
Inglés.