http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Determining pesticide and nitrate levels in spring water in Northwest Arkansas
Arkansas Water Resources Research Center
T.L. Lavy, B.A. Dehart and J.D. Mattice.
Research project technical completion report.
Financed in part by the U.S. Dept. of the Interior. project no. G-1549-02.
Publication (Arkansas Water Resources Research Center) ; no. 138