Wetmore, Clifford M.2014-07-072014-07-071992-10Wetmore CM. Lichens and air quality in George Washington Carver National Park. Final Report. 1992:1-14.https://hdl.handle.net/11299/1637541 PDF computer file (14 pages; 1 page of tabular data)en-USLichensLichens and air quality in George Washington Carver National Park: Final ReportReport