Search Results for the EPA National Library Catalog

Items Found: 7

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Your Search: (AUTHOR=Heck AND Walter AND W.)

 
 
 

Select Item Title Year Published
Assessment of Crop Loss from Ozone. 1982
Environmental monitoring and assessment program : agroecosystem monitoring and research strategy / 1991
Environmental monitoring and assessment program : agroecosystem monitoring and research strategy / 1992
Methodology for the assessment of air pollution effects on vegetation : a handbook / 1979
National Crop Loss Assessment Network (NCLAN) 1981 Annual Report. 1983
National Crop Loss Assessment Network (NCLAN), 1980. 1982
Tobacco, a sensitive monitor for photochemical air pollution / 1969

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