Barbara T. Walton – författare
Visar alla böcker från författaren Barbara T. Walton. Handla med fri frakt och snabb leverans.
3 produkter
Monitoring Ecological Condition in the Western United States
Av Shabeg S. Sandhu, Brian D. Melzian m. fl.
Inbunden, 2000
1096 kr
Lägg i varukorg
This volume is the proceedings of a symposium held on April 6-8, 1999, in San Francisco, California, USA, and sponsored by the US Environmental Protection Agency's (EPA) Environmental Monitoring and Assessment Program (EMAP). EMAP is the primary program of the EPA's Office of Research and …
Monitoring Ecological Condition in the Western United States
Av Shabeg S. Sandhu, Brian D. Melzian m. fl.
Häftad, 2012
1096 kr
Lägg i varukorg
The monitoring of point sources by the Environmental Protection Agency (EPA), the states, and the tribes has documented and helped reduce the levels of chemical stressors affecting our ecosystems. With the controls on point sources reducing chemical contamination, new environmental challenges …
Monitoring Ecological Condition in the Western United States
Av Barbara T. Walton, Walter G. Whitford m. fl.
E-bok, 2012
1459 kr
Lägg i varukorg
The monitoring of point sources by the Environmental Protection Agency (EPA), the states, and the tribes has documented and helped reduce the levels of chemical stressors affecting our ecosystems. With the controls on point sources reducing chemical contamination, new environmental challenges …
