United States Department of Agriculture, Natural Resources Conservation Service ; in cooperation with the West Virginia Agricultural and Forestry Experiment Station and the United States Department of Agriculture, Forest Service
Includes bibliographical references (page 339) and index to map sheets.
Mode of access: Internet from the USDA web site. Address as of 5/29/2008: http://soildatamart.nrcs.usda.gov/Manuscripts/WV025/0/WVGreenbrier1%5F07.pdf; current access available via PURL.