http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Soil survey of Cumberland and Perry Counties, Pennsylvania
1 case (1 volume, 47 maps) : illustrations ; 31 cm.
United States Department of Agriculture, Soil Conservation Service ; in cooperation with the Pennsylvania State University, College of Agriculture, and the Pennsylvania Department of Environmental Resources, State Conservation Commission.