http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Chemical analyses of selected public drinking water supplies (including trace metals)
A digital reproduction is available from the University of Wisconsin Digital Collections (UWDC).
Includes bibliographical references (page 16).
Madison, Wis., Dept. of Natural Resources, 1972
Technical bulletin (Wisconsin. Department of Natural Resources) ; no. 53