Lichens and air quality in Voyageurs National Park: Final report.

Wetmore, Clifford M.2014-07-292014-07-291983-06Wetmore CM. Lichens and air quality in Voyageurs National Park. Final Report. 1983:1-34.https://hdl.handle.net/11299/1642791 PDF computer file (13 pages plus 21 pages of maps includes handwritten corrections)en-USLichensAir qualityLichens and air quality in Voyageurs National Park: Final report.Report