Wetmore, Clifford M.2014-07-292014-07-291984-06Wetmore CM. Lichens and air quality in Voyageurs National Park. Final Report, chemical analysis supplement. 1984:1-9.https://hdl.handle.net/11299/1642821 PDF computer file (6 pages plus 3 pages of tabular data)en-USLichensAir qualityLichens and air quality in Voyageurs National Park: Final report, chemical analysis supplementReport