http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Water in sand and gravel deposits in McHenry County, Illinois
McHenry County Regional Planning Commission
vii, 34 pages : illustrations, maps ; 28 cm.
by J.R. Nicholas and J.T. Krohelski ; prepared in cooperation with the McHenry County Regional Planning Commission.
Water-resources investigations report ; 83-4048