Wetmore CM. Lichens and air quality in Cuyahoga Valley National Recreation Area. Final Report. 1986:1-32.
1 PDF computer file (32 pages; 1 chart, 3 maps)
National Park Service
Contract CX 0001-2-0034
Wetmore, Clifford M..
Lichens and air quality in Cuyahoga Valley National Recreation Area: Final Report..
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