http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Nutrient and sediment concentrations, trends, and loads from five subwatersheds in the Patuxent River Basin, Maryland, 1986-96
Nutrients and sediment in the Patuxent River Basin, Maryland, 1986-96
Chesapeake and Coastal Watershed Service.
v, 31 pages : illustrations, map ; 28 cm.
by Joy S. Lizárraga ; in cooperation with the Maryland Department of Natural Resources, Chesapeake and Coastal Watershed Service.
Includes bibliographical references (pages 30-31).
Water-resources investigations report ; 98-4221