Search Results for the EPA National Library Catalog

Items Found: 20

Showing: Items 1 - 20

Your Search: (AUTHOR=Patrick AND Ruth.)

 
 
 

Select Item Title Year Published
Benthic macrofaunal community structure in ocean dredged material disposal sites in Louisiana : preliminary analysis / 1994
Biological surveys and biological monitoring in fresh water 1974
Delaware River estuarine marsh survey A report to the National Foundation RANN program. 1973
Diatoms of the United States, exclusive of Alaska and Hawaii 1966
Ecosystematic study of the fauna and flora of the Savannah River; 1967
Estuarine surveys, biomonitoring and bioassays 1976
Groundwater contamination in the United States 1987
Groundwater contamination in the United States 1983
Literature search on the upper Chesapeake watershed / {prepared by the Academy of Natural Sciences of Philadelphia for the Upper Chesapeake Watershed Association} 1970
Managing water resources 1986
Petroleum industry in the Delaware estuary : a report to National Science Foundation Rann Program / 1977
Rivers of the United States 1994
Rivers of the United States The Mississippi River tributaries north {i.e. south} of St Louis / 1998
Rivers of the United States. 1998
Surface water quality : have the laws been successful? / 1992
The Effect of nitrilotriacetic acid (NTA) on the structure and functioning of aquatic communities in streams / 1980
The potential for biological controls of Cladophora glomerata / 1983
The potential for biological controls of Cladophora glomerata / 1983
The role of trace elements in management of nuisance growths, 1975
Two studies of Tinicum Marsh, Delaware and Philadelphia Counties, Pennsylvania : The natural features of Tinicum Marsh, with particular emphasis on the vegetation 1970

Save, Print or Email Selected Records