http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Ground-water discharge and base-flow nitrate loads of nontidal streams, and their relation to a hydrogeomorphic classification of the Chesapeake Bay watershed, Middle Atlantic coast
1 online resource (iv, 71 pages) : illustrations, maps (1 color).
by L. Joseph Bachman [and three others].
Includes bibliographical references (pages 28-30).
Water-resources investigations report ; 98-4059