http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Distribution of phytoplankton in Virginia lakes
Environmental Monitoring and Support Laboratory (Las Vegas, Nev.)
Previously released in limited distribution Number 692 in the Working Paper Series for National Eutrophication Survey.
Research reporting series. EPA-600/3-77-100