Proceedings of the 1990 Billings land reclamation symposium on selenium in arid and semiarid environments, Western United States /

Vydáno 1991

Geochemical sampling in arid environments by the U.S. geological survey /

Autor Hinkle, Margaret E.
Vydáno 1988

A strategy for assessing potential future changes in climate, hydrology, and vegetation in the Western United States /

Autor Thompson, Robert S., Hostetler, Steven W., Bartlein, Patrick J., 1950-, Anderson, Katherine H.
Vydáno 1998