http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Probability sampling to measure pollution from rural land runoff
Environmental Research Laboratory (Athens, Ga.).
xvii, 197 pages : illustrations, maps ; 28 cm.
"Environmental Systems Branch, Environmental Research Laboratory."
Research reporting series. EPA-600/3-80-035