TY  - SER
AU  - Shckely, Steven M.
TI  - Mass production and procurement at valle del Azufre : : a unique archaeological obsidian source in baja Califonia Sur
T2  - American Antiquity ; 
PY  - 1996///
CY  - Washington-US : 
PB  - Society for American Archaeology, 
N1  - Artículo dentro de: Reports
ER  -