Evansville Vanderburgh Public Library

Mines and mineral resources -- Pennsylvania -- Butler County

Type

http://bibfra.me/vocab/lite/Concept

Label

Mines and mineral resources -- Pennsylvania -- Butler County

Name

Mines and mineral resources

Focus

Mines and mineral resources

Sub focus

Actions

Incoming Resources

Subject of
1
- Coal resources of Butler County, Pennsylvania, by Elmer D. Patterson and J.A. Van Lieu

Outgoing Resources

Focus
1
- Mines and mineral resources
Sub focus
2
- Butler County
- Pennsylvania