Search Results for the EPA National Library Catalog

Items Found: 3

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Your Search: (AUTHOR=Cohen AND Ronald AND R.H.)


Select Item Title Year Published
Phytoplankton dynamics of the fresh, tidal Potomac River, Maryland, for the summers of 1979 to 1981 a water-quality study of the tidal Potomac River and estuary / 1988
Primary productivity by phytoplankton in the tidal, fresh Potomac River, Maryland, May 1980 to August 1981 1983
Technical manual for the design and operation of a passive mine drainage treatment system 1992

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