Water quality in the Delmarva Peninsula, Delaware, Maryland, and Virginia, 1999 - 2001
In: U.S. Geological Survey circular 1228
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In: U.S. Geological Survey circular 1228
In: Circular 1196-A-M
In: U.S. Geological Survey Circular 1235
In: U.S. Geological Survey Circular 1232
In: U.S. Geological Survey Circular 1233
In: U.S. Geological Survey Circular 1230
In: U.S. Geological Survey Circular 1229
In: Geologic investigations series I-2761
In: Water resources investigations report 01/4022
In: Geologic investigations series. Map I-2735
In: U.S. Geological Survey professional paper 1553 D
In: Societal response
In: US Geological Survey circular 1120 G
In: Floods in the upper Mississippi River Basin, 1993 G
In: National water-quality assessment
In: Kentucky River Basin B
In: US Geological Survey water-supply paper 2351 B
In: US Geological Survey circular 1050