http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Occurrence and distribution of microbiological contamination and enteric viruses in shallow ground water in Baltimore and Harford counties, Maryland
iv, 39 pages : color illustrations, color maps ; 28 cm.
by William S.L. Banks and David A. Battigelli ; in cooperation with the Maryland Dept. of the Environment.
Also available via Internet from the USGS web site. Address as of 9/3/08: http://pubs.usgs.gov/wri/wri01-4216/wrir-01-4216.pdf ; current access available via PURL.
Includes bibliographical references (pages 13-15).
Water-resources investigations report ; 01-4216