http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Distribution of phytoplankton in West Virginia lakes
Environmental Monitoring and Support Laboratory (Las Vegas, Nev.)
Previously released in limited distribution Number 693 in the Working Paper Series for the National Eutrophication Survey.
Research reporting series. EPA-600/3-77-103