http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Development of a strategy for sampling tree rings
Environmental Monitoring and Support Laboratory (Las Vegas, Nev.)
Northwest Environmental Technology Laboratories
by Jerry A. Riehl, Northwest Environmental Technology Laboratories, inc.
Research reporting series. EPA-600/3-79-030