Pennsylvania. Board of Commissioners for the Second Geological Survey
URI(s)
Variants
- Pennsylvania. Commissioners for the Second Geological Survey
- Pennsylvania. Geological Survey, Board of Commissioners for the Second
Additional Information
Related Terms
Exact Matching Concepts from Other Schemes
Instance Of
Scheme Membership(s)
Collection Membership(s)
Change Notes
- 1979-07-24: new
- 2018-11-29: revised
Alternate Formats