Search Results for the EPA National Library Catalog

Items Found: 3

Showing: Items 1 - 3

Your Search: (SUBJECT=Fresh water biology United States)


Select Item Title Year Published
Biological associated problems in freshwater environments: their identification, investigation and control 1967
Biota of Freshwater Ecosystems. Identification Manual No. 2. The Genus 'Argulus' (Crustacea: Branchiura) of the United States. 1972
Genera Hantzschia through Pteromonas collected from eastern and southeastern lakes / 1979

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