TY  - SER
AU  - Bates Graber, Robert.
TI  - Areal decreae density increase, and circumscriptions : : a mathematical note
T2  - American Antiquity ; 
PY  - 1990///
CY  - Washington-US : 
PB  - Society for American Archaeology, 
N1  - Artículo dentro de: Reports
ER  -