http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Toxicity, fate, and design implications for activated sludge removal of mercury, cadmium, and zinc
Microfilm of typescript. Ann Arbor, Mich. : University Microfilms, 1974. -- 1 reel ; 35 mm.