Search Results for the EPA National Library Catalog

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Your Search: (AUTHOR=Helmer AND E. AND H.)


Select Item Title Year Published
Effects of Chlorine and Ammonia from Wastewater Treatment Facilities on Biotic Integrity. 1985
Gradient Anaysis of Biomass in Costa Rica and a First Estimate of Total Emissions of Greenhouse Gases from Biomass Burning. 1997

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