Wetmore CM. Lichens and air quality in Sleeping Bear Dunes National Park. Final Report. 1988:1-37.
1 PDF computer file (25 pages plus 13 maps, 2 tabular data. Includes handwritten emendations)
National Park Service
Contract CX 0001-2-0034
Wetmore, Clifford M..
Lichens and air quality in Sleeping Bear Dunes National Park: Final report.
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