http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Comparison of random and systematic site selection for assessing attainment of aquatic life uses in segments of the Ohio River
National Exposure Research Laboratory (U.S.)
Karen Blocksom, Erich Emery, and Jeff Thomas.
Title from title screen (viewed Dec. 19, 2007).
Mode of access: Internet from the EPA web site. Address as of 12/19/2007: http://www.epa.gov/eerd/pdf/aquatic/APM8%5FEPA600-R06-089.pdf ; current access is available via PURL.
Includes bibliographical references (pages 24-26).