http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Water quality in the Sacramento River Basin, California, 1994-98
National Water-Quality Assessment Program (U.S.)
iv, 36 pages : illustrations (some color), color maps ; 28 cm.
Also available via Internet from the USGS web site. Address as of 05/11/01: http://water.usgs.gov/pubs/circ/circ1215; current access is available via PURL.
Includes bibliographical references (pages 29-30).