travel costs estimate
Toxicology.
titicaca lupaqa qolla altiplano adaptation chronicals
Sub-Saharan.
Sub-Saharan Economic conditions 1918-
Southern Cone
Soils and climate Congresses
SIRGAS 2000 datum
regression analysis exchange trade falloff
Poisons.
Poisoning.
Plant ecology Latin America Congresses
Peru Antiquities
Pastoral systems Chile
Obsidian mines and mining Mexico Michoac
Mountain ecology Latin America Congresses
Michoac
Marxian school of sociology Congresses.
Markets Africa
Mantaro River Valley (Peru) Antiquities
long-distance exchange
landscape gps siteless survey
Land settlement patterns Congresses