Search Results for the EPA National Library Catalog

Items Found: 5

Showing: Items 1 - 5

Your Search: (SUBJECT=Clay Pennsylvania)

 
 
 

Select Item Title Year Published
Atlas of Pennsylvania's mineral resources. 1964
Greater Pittsburgh region properties and uses of clays and shales / 1976
Properties and uses of Pennsylvania shales and clays / 1965
Properties and uses of shales and clays, south-central Pennsylvania / 1981
Properties and uses of shales and clays, southwestern Pennsylvania / 1979

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