Search Results for the EPA National Library Catalog

Items Found: 3

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Your Search: (AUTHOR=Simpson AND Robert AND Lee)

 
 
 

Select Item Title Year Published
Effect of sewage effluent on the structure and function of a freshwater tidal marsh ecosystem 1980
Freshwater wetlands : ecological processes and management potential / 1978
The ecological effects of the aquatic herbicide fenac on small ponds / 1971

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