http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
xi, 369 pages 2 unnumbered pages, 165 folded pages of plates : illustrations, maps (some color) ; 28 cm.
United States Department of Agriculture, Soil Conservation Service ; in cooperation with United States Department of the Interior [and others].